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Chen Y, Yao X, Sun J, Ma A. Effects of different high temperature-pressure processing times on the sensory quality, nutrition and allergenicity of ready-to-eat clam meat. Food Res Int 2024; 185:114263. [PMID: 38658068 DOI: 10.1016/j.foodres.2024.114263] [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: 12/15/2023] [Revised: 03/16/2024] [Accepted: 03/19/2024] [Indexed: 04/26/2024]
Abstract
Investigating technologies to control the allergenicity of seafood is particularly important to safeguard consumer health, but there is currently a dearth of research focused on reducing the allergenicity of clam meat. This study aimed to investigate the effects of high temperature-pressure (HTP) processing times (121 °C, 0.14 MPa; 5, 10, 15, 20 min) on the sensory quality, nutrition, and allergenicity of ready-to-eat clam meat. With the extension of HTP time, the hardness of clam meat gradually decreased, the chewiness decreased initially and then increased, and the meat became tender. HTP processing endowed clam meat with abundant esters and aldehydes. Among all the processing groups, the umami and saltiness were better at 15 min, correlating with the highest overall acceptability. Ready-to-eat clam meat contained high-protein nutritional value. Compared with raw clam meat, the tropomyosin allergenicity of clam meat treated with HTP for 15 and 20 min was significantly reduced by 51.9 % and 56.5 %, respectively (P < 0.05). However, there was no significant difference between these two groups. Appropriate HTP processing time might be an efficient condition to reduce the tropomyosin allergenicity of ready-to-eat clam meat and improve its quality, particularly for the time of 15 min. The results of this study could provide a reliable theoretical basis for the development of hypoallergenic clam foods.
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Affiliation(s)
- Yachun Chen
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China; College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China
| | - Xiaoyue Yao
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Jilu Sun
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China.
| | - Aijin Ma
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China.
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2
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Sato S, Ebisawa M. Precision allergy molecular diagnosis applications in food allergy. Curr Opin Allergy Clin Immunol 2024; 24:129-137. [PMID: 38529801 DOI: 10.1097/aci.0000000000000977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
PURPOSE OF REVIEW Precision medicine has become important in the diagnosis and management of food allergies. This review summarizes the latest information regarding molecular allergology, an essential component of food allergy managements. RECENT FINDINGS Component-resolved diagnostics (CRD) can be used to investigate sensitization to allergens based on symptoms and to reveal co-sensitization and/or cross-sensitization in patients with allergies. The following allergen components are known to be associated with symptoms: ovomucoid from eggs, omega-5 gliadin from wheat, and many storage proteins (Gly m 8 from soy, Ara h 2 from peanut, Cor a 14 from hazelnut, Ana o 3 from cashew nut, Jug r 1 from walnut, and Ses i 1 from sesame). Recent studies on allergens of macadamia nuts (Mac i 1 and Mac i 2), almonds (Pru du 6), fish (parvalbumin and collagen), and shrimp (Pem m 1 and Pem m 14) have provided additional information regarding CRD. In addition, Pru p 7 is a risk factor for systemic reactions to peaches and has recently been found to cross-react with cypress and Japanese cedar pollen. SUMMARY CRD provides information of individualized sensitization profiles related to symptoms and severity of allergies in patients. Clinical practice based on CRD offers many benefits, such as higher diagnostic accuracy and improved management of individual patients.
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Affiliation(s)
- Sakura Sato
- Department of Allergy, Clinical Research Center for Allergy and Rheumatology, NHO Sagamihara National Hospital, Kanagawa, Japan
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Dinardo G, Cafarotti A, Fierro V, Artesani MC, Indolfi C, Miraglia Del Giudice M, Fiocchi A. Role of biologics in severe food allergy. Curr Opin Allergy Clin Immunol 2024; 24:138-143. [PMID: 38538153 DOI: 10.1097/aci.0000000000000978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
PURPOSE OF REVIEW This review examine the dynamic landscape of food allergy treatment within the context of emerging biologics. Our purpose is to comprehensively evaluate the potential benefits, challenges, and transformative impact associated with the utilization of biologics in comparison to conventional therapeutic modalities. RECENT FINDINGS This document synthesizes recent scientific investigations to various biologics, such as omalizumab, ligelizumab, dupilumab, and tezepelumab, providing a nuanced understanding of their roles in oral immunotherapy, rapid desensitization, and overall food allergy management. Recent studies and clinical trials highlight the impact of anti-IgE treatment on food allergies, revealing critical findings such as dose-related efficacy, facilitation of rapid desensitization in peanut allergies, and the sustained positive outcomes observed in individuals with multifood allergies. SUMMARY The use of biologics presents a groundbreaking approach in the treatment of food allergies. The multifaceted action of these agents, along with their potential to overcome the challenges associated with traditional therapies, marks a significant advancement. Despite the persisting challenges of economic constraints and the need for further safety studies, biologics offer a promising avenue for improving the quality of life for individuals with food allergies. Ongoing research and collaborative efforts are imperative to fully realize the transformative potential inherent in these emerging therapeutic frontiers.
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Affiliation(s)
- Giulio Dinardo
- Department of Women, Children, and General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples
| | - Arianna Cafarotti
- Pediatric Allergology Unit, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | - Vincenzo Fierro
- Pediatric Allergology Unit, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | | | - Cristiana Indolfi
- Department of Women, Children, and General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples
| | - Michele Miraglia Del Giudice
- Department of Women, Children, and General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples
| | - Alessandro Fiocchi
- Pediatric Allergology Unit, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
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Fierro V, Mazzuca C, Urbani S, Dahdah L, Calandrelli V, Valluzzi RL, Giulio D. Perspectives in precautionary allergen labelling of prepackaged foods after the FAO/WHO consultation. Curr Opin Allergy Clin Immunol 2024; 24:166-170. [PMID: 38547411 DOI: 10.1097/aci.0000000000000979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
PURPOSE OF REVIEW The purpose of this review is to provide an overview of the perspectives regarding precautionary allergen labelling (PAL) of prepackaged foods following the consultation conducted by the Food and Agriculture Organization (FAO) and the WHO. RECENT FINDINGS The FAO/WHO consultation provided a comprehensive assessment of the current status and practices of PAL implementation worldwide. One of the key findings highlighted by the Expert Committee was the need for improvement in existing PAL systems. It was noted that many countries lacked uniformity in PAL practices, leading to inconsistencies in labelling and potentially misleading information for consumers. Furthermore, the consultation emphasized the importance of PAL being risk-based, taking into account both the amount and frequency of unintended allergen presence (UAP) in food products. SUMMARY The FAO/WHO consultation shed light on various perspectives and challenges associated with PAL of prepackaged foods. Key findings emphasized the need for improvement in existing PAL systems, including the adoption of a risk-based approach, standardized regulations, and enhanced transparency. Moving forward, collaborative efforts between regulatory agencies, food manufacturers, and consumer advocacy groups will be essential in developing effective PAL strategies that prioritize consumer safety and well being.
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Affiliation(s)
- Vincenzo Fierro
- Pediatric Allergology Unit, Bambino Gesù Children's Hospital IRCCS, Rome
| | - Carmen Mazzuca
- Pediatric Allergology Unit, Bambino Gesù Children's Hospital IRCCS, Rome
| | - Sara Urbani
- Pediatric Allergology Unit, Bambino Gesù Children's Hospital IRCCS, Rome
| | - Lamia Dahdah
- Pediatric Allergology Unit, Bambino Gesù Children's Hospital IRCCS, Rome
| | | | | | - Dinardo Giulio
- Department of Women, Children, and General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples, Italy
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5
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Ishibashi S, Yanagida N, Sato S, Ebisawa M. Management of food allergy based on oral food challenge. Curr Opin Allergy Clin Immunol 2024; 24:153-159. [PMID: 38538146 DOI: 10.1097/aci.0000000000000980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
PURPOSE OF REVIEW Food allergy is a growing health problem that affects both patients and society in multiple ways. Despite the emergence of novel diagnostic tools, such as component-resolved diagnostics (CRD) and basophil activation tests (BAT), oral food challenge (OFC) still plays an indispensable role in the management of food allergies. This review aimed to highlight the indications and safety concerns of conducting an OFC and to provide insights into post-OFC management based on recent findings. RECENT FINDINGS Standardized OFC protocols have regional diversification, especially in Japan and Western countries. Recent studies suggested that the interval between doses should be at least more than an hour. Furthermore, applying a stepwise method tailored to the patient's specific immunoglobulin E level and history of anaphylaxis seems to mitigate these risks. Recent surveys have shown that, following a positive OFC, options other than strict avoidance are also selected. SUMMARY OFC serves diverse purposes, yet the risks it carries warrant caution. The stepwise protocol appears promising for its safety. Subthreshold consumption following OFC shows potential; however, further research on its efficacy and safety is required. Management following OFC should be tailored and well discussed between clinicians and patients.
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Affiliation(s)
- Seijiro Ishibashi
- Department of Allergy, Clinical Research Center for Allergy and Rheumatology, NHO Sagamihara National Hospital, Kanagawa, Japan
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Schuetz JP, Anderson B, Sindher SB. New biologics for food allergy. Curr Opin Allergy Clin Immunol 2024; 24:147-152. [PMID: 38547423 DOI: 10.1097/aci.0000000000000981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
PURPOSE OF REVIEW This review aims to explore role of emerging biologics, including ligelizumab, UB-221, dupilumab, and antialarmins, in food allergy management. With a focus on recent developments, we evaluate their promise in mitigating adverse events during oral immunotherapy (OIT), reducing allergic reactions, and addressing the limitations of current therapeutic options. RECENT FINDINGS Antiimmunoglobulin E mAbs, exemplified by omalizumab, demonstrate efficacy in desensitization and safety improvement during multiallergen OIT. Next-generation antibodies like ligelizumab and UB-221 exhibit enhanced potency and unique mechanisms, holding promise for food allergy treatment. Dupilumab, targeting IL-4 receptor alpha, presents potential benefits in decreasing allergen-specific IgE and modifying the atopic march. Exploration of antialarmins, specifically anti-IL-33 (etokimab) and anti-TSLP (tezepelumab), reveals encouraging results, with etokimab showing early success in peanut allergy trials. SUMMARY Biologics hold promising potential for food allergy treatment. Tailoring therapeutic approaches based on shared decision-making becomes pivotal. While omalizumab remains a significant option, next-generation anti-IgE antibodies and agents targeting alarmins exhibit unique strengths. Dupilumab, despite limited success as monotherapy, shows promise as an adjunct for OIT. Careful consideration of treatment goals, patient preferences, and the evolving landscape of biologics will shape future clinical practice, offering allergists an expanded toolbox for personalized food allergy management.
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Affiliation(s)
- Jackson P Schuetz
- Department of Pathology, Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford, California, USA
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7
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Arasi S, Mazzuca C, Urbani S, Cafarotti A, Fiocchi A. Perspectives in the validation of DEFASE: a paradigm shift in food allergy management. Curr Opin Allergy Clin Immunol 2024; 24:171-176. [PMID: 38656289 DOI: 10.1097/aci.0000000000000988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
PURPOSE OF REVIEW To explore the groundbreaking international consensus on the DEFASE (DEfinition of Food Allergy Severity) project as a revolutionary grading system for IgE-mediated food allergy severity. Against the backdrop of the growing public health challenge posed by food allergy, this article delves into the importance of validating and implementing DEFASE in real-world clinical settings. RECENT FINDINGS With new therapeutic options available for food allergy, including biologics alongside immunotherapy, it is urgent to properly support clinical decision-making in the management of the disease. The DEFASE score is the first international consensus-based grading system of severity associated with food allergy as a whole disease embracing multidisciplinary perspectives from different stakeholders involved. In its current version, this comprehensive scoring system has been developed to be used in research settings. SUMMARY The review emphasizes the potential impact of DEFASE on patient outcomes, healthcare management, and resource allocation, underscoring its significance for the allergy scientific community. Future research should focus on internal and external validation of the scoring system, targeting these models to various food allergenic sources, populations, and settings.
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Affiliation(s)
- Stefania Arasi
- Translational Research in Paediatric Specialities Area, Division of Allergy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
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8
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Sakihara T. Regular consumption following early introduction of allergenic foods and aggressive treatment of eczema are necessary for preventing the development of food allergy in children. Curr Opin Allergy Clin Immunol 2024; 24:160-165. [PMID: 38538069 DOI: 10.1097/aci.0000000000000983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
PURPOSE OF REVIEW Over the past two decades, food allergy prevention strategies have shifted from 'delayed introduction' to 'no delayed introduction' to 'early introduction' of allergenic foods. This article reviews important research in this field published in the early 2020s to support future strategies for food allergy prevention. RECENT FINDINGS Recent randomized controlled trials (RCTs), systematic reviews, meta-analyses, and real-world studies have reported that early allergenic food introduction, especially peanut and egg, are effective for preventing food allergies. However, there are also reports that food-induced anaphylaxis admission rates in infants are increasing. SUMMARY Early allergenic food introduction by itself is not sufficient to prevent the development of food allergies. Recent RCTs (SPADE study and COMEET study) have demonstrated that continued regular cow's milk consumption after early introduction is important for preventing the onset of cow's milk allergy. Furthermore, an RCT (PACI study) reported that early and aggressive anti-inflammatory topical therapy for eczema can contribute to the prevention of egg allergy by suppressing percutaneous sensitization. Food allergies may be prevented through a combination of early food introduction, regular consumption, and active eczema treatment. Further research is needed to develop well tolerated, effective, and practical strategies to prevent food allergies.
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Ouyang X, Reihill JA, Douglas LEJ, Martin SL. Airborne indoor allergen serine proteases and their contribution to sensitisation and activation of innate immunity in allergic airway disease. Eur Respir Rev 2024; 33:230126. [PMID: 38657996 PMCID: PMC11040391 DOI: 10.1183/16000617.0126-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 02/28/2024] [Indexed: 04/26/2024] Open
Abstract
Common airborne allergens (pollen, animal dander and those from fungi and insects) are the main triggers of type I allergic disorder in the respiratory system and are associated with allergic rhinitis, allergic asthma, as well as immunoglobulin E (IgE)-mediated allergic bronchopulmonary aspergillosis. These allergens promote IgE crosslinking, vasodilation, infiltration of inflammatory cells, mucosal barrier dysfunction, extracellular matrix deposition and smooth muscle spasm, which collectively cause remodelling of the airways. Fungus and insect (house dust mite and cockroaches) indoor allergens are particularly rich in proteases. Indeed, more than 40 different types of aeroallergen proteases, which have both IgE-neutralising and tissue-destructive activities, have been documented in the Allergen Nomenclature database. Of all the inhaled protease allergens, 85% are classed as serine protease activities and include trypsin-like, chymotrypsin-like and collagenolytic serine proteases. In this article, we review and compare the allergenicity and proteolytic effect of allergen serine proteases as listed in the Allergen Nomenclature and MEROPS databases and highlight their contribution to allergic sensitisation, disruption of the epithelial barrier and activation of innate immunity in allergic airways disease. The utility of small-molecule inhibitors of allergen serine proteases as a potential treatment strategy for allergic airways disease will also be discussed.
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Affiliation(s)
- Xuan Ouyang
- School of Pharmacy, Queen's University Belfast, Belfast, UK
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10
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Wang Z, Zhang J, Yuan J, Min F, Gao J, Liu W, Huang M, Wu Y, Chen H. Oral administration of egg ovalbumin allergen induces dysregulation of tryptophan metabolism in sensitized BALB/c mice. Food Funct 2024; 15:4375-4388. [PMID: 38546528 DOI: 10.1039/d3fo05300h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Food allergy (FA), triggered by specific dietary allergens, has emerged as a substantial global concern for food safety and public health. While studies have elucidated changes in immune cells and cytokines associated with allergen exposure, a comprehensive analysis of the host's metabolic features and the interaction between metabolites and the gut microbiota has not been conducted. In this study, egg allergen ovalbumin (OVA) was administered by the oral route to sensitized BALB/c mice to faithfully replicate key aspects of human FA, including severe allergic diarrhea, mast cell infiltration, and elevated levels of serum IgE, mMCPT-1, and Th2 cell hallmark cytokines (such as IL-4, IL-5, and IL-13). Furthermore, the untargeted and targeted metabolomic analyses indicated that FA in mice precipitated a substantial decrease in the tryptophan metabolites indole-3-acrylic acid (IA) and indole-3-lactic acid (ILA). The integration of shotgun metagenome and metabolome data further unveiled that the dysregulation of indole metabolism is related to a decline in the abundance of beneficial bacteria such as Lactobacillus and Bifidobacterium. Additionally, disruption of the tryptophan indole derivative pathway compromises the maintenance of intestinal mucosal function through the AHR signaling pathway, manifested by decreased expression of Reg3g and IL22. Taken together, this study demonstrated that the anaphylaxis triggered by oral ingestion of food allergens can lead to disruptions in tryptophan metabolism, consequently impairing intestinal immune homeostasis.
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Affiliation(s)
- Zhongliang Wang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
- College of Food Science and Technology, Nanchang University, Nanchang 330031, China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China.
| | - Jie Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
- College of Food Science and Technology, Nanchang University, Nanchang 330031, China
- Animal Science and Technology Center, Jiangxi University of Traditional Medicine, Nanchang 330004, China
| | - Jin Yuan
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
- College of Food Science and Technology, Nanchang University, Nanchang 330031, China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China.
| | - Fangfang Min
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
- College of Food Science and Technology, Nanchang University, Nanchang 330031, China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China.
| | - Jinyan Gao
- College of Food Science and Technology, Nanchang University, Nanchang 330031, China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China.
| | - Wenfeng Liu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
- College of Food Science and Technology, Nanchang University, Nanchang 330031, China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China.
| | - Meijia Huang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
- College of Food Science and Technology, Nanchang University, Nanchang 330031, China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China.
| | - Yong Wu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
- Sino German Joint Research Institute, Nanchang University, Nanchang 330047, China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China.
| | - Hongbing Chen
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
- Sino German Joint Research Institute, Nanchang University, Nanchang 330047, China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China.
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Rudokas V, Silimavicius L, Kucinskaite-Kodze I, Sliziene A, Pleckaityte M, Zvirbliene A. Novel monoclonal antibodies against house dust mite allergen Der p 21 and their application to analyze allergen extracts. PeerJ 2024; 12:e17233. [PMID: 38646484 PMCID: PMC11032652 DOI: 10.7717/peerj.17233] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 03/22/2024] [Indexed: 04/23/2024] Open
Abstract
Background Allergen extracts and recombinant allergens are used in allergy diagnostics and immunotherapy. Since allergen extracts from different manufacturers lack proper standardization regarding their composition, monoclonal antibodies (MAbs) against specific allergen components can be used for their identification and quantification in allergen extracts. This study aimed to generate MAbs against allergen Der p 21 of Dermatophagoides pteronyssinus for the analysis of allergen extracts. Methods Recombinant Der p 21 was expressed in E. coli and purified using affinity chromatography. MAbs against Der p 21 were generated using hybridoma technology. House dust mite (HDM) allergen extracts were analyzed using the newly developed sandwich enzyme-linked immunosorbent assay, Western blotting and microarray immunoassay. Results MAbs raised against recombinant Der p 21 were characterized in detail and proven to be reactive with natural Der p 21. Highly specific sandwich enzyme-linked immunosorbent assay for the quantification of Der p 21 was developed and optimized. The allergen was detected and its concentration was determined in only three of six analyzed HDM allergen extracts from different manufacturers. Conclusion HDM analysis by MAb-based immunoassays shows their differences in allergen composition. The results demonstrate the importance of allergen-specific MAbs as a tool for the characterization of allergen extracts and the need for their appropriate standardization before their use for allergy diagnostics or immunotherapy.
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Affiliation(s)
- Vytautas Rudokas
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Laimis Silimavicius
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
- UAB Imunodiagnostika, Vilnius, Lithuania
| | | | - Aiste Sliziene
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Milda Pleckaityte
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Aurelija Zvirbliene
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
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12
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Wisnewski AV, Liu J. Lung Gene Expression Suggests Roles for Interferon-Stimulated Genes and Adenosine Deaminase Acting against RNA-1 in Pathologic Responses to Diisocyanate. Chem Res Toxicol 2024; 37:476-485. [PMID: 38494904 DOI: 10.1021/acs.chemrestox.3c00325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Mechanisms underlying methylene diphenyl diisocyanate (MDI) and other low molecular weight chemical-induced asthma are unclear and appear distinct from those of high molecular weight (HMW) allergen-induced asthma. We sought to elucidate molecular pathways that differentiate asthma-like pathogenic vs nonpathogenic responses to respiratory tract MDI exposure in a murine model. Lung gene expression differences in MDI exposed immune-sensitized and nonsensitized mice vs unexposed controls were measured by microarrays, and associated molecular pathways were identified through bioinformatic analyses and further compared with published studies of a prototypic HMW asthmagen (ovalbumin). Respiratory tract MDI exposure significantly altered lung gene expression in both nonsensitized and immune-sensitized mice, vs controls. Fifty-three gene transcripts were altered in all MDI exposed lung tissue vs controls, with levels up to 10-fold higher in immune-sensitized vs nonsensitized mice. Gene transcripts selectively increased in MDI exposed immune-sensitized animals were dominated by chitinases and chemokines and showed substantial overlap with those increased in ovalbumin-induced asthma. In contrast, MDI exposure of nonsensitized mice increased type I interferon stimulated genes (ISGs) in a pattern reflecting deficiency in adenosine deaminase acting against RNA (ADAR-1), an important regulator of innate, as well as "sterile" or autoimmunity triggered by tissue damage. Thus, MDI-induced changes in lung gene expression were identified that differentiate nonpathogenic innate responses in nonsensitized hosts from pathologic adaptive responses in immune-sensitized hosts. The data suggest that MDI alters unique biological pathways involving ISGs and ADAR-1, potentially explaining its unique immunogenicity/allergenicity.
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Affiliation(s)
- Adam V Wisnewski
- Department of Internal Medicine, Yale University School of Medicine, New Haven, 06520, Connecticut United States
| | - Jian Liu
- Department of Internal Medicine, Yale University School of Medicine, New Haven, 06520, Connecticut United States
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13
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Wong GWK. Options for Multiple Food Allergies - Food Avoidance or Pharmacologic Treatment? N Engl J Med 2024; 390:946-948. [PMID: 38407311 DOI: 10.1056/nejme2400807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Affiliation(s)
- Gary W K Wong
- From the Department of Pediatrics, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong
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14
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Abstract
This JAMA Patient Page describes alpha-gal syndrome, a type of food allergy to red meat products, and its symptoms, diagnosis, and treatment.
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Affiliation(s)
- Fatema Mollah
- Division of Allergy and Clinical Immunology, Michigan Medicine, Ann Arbor
| | - Mark A Zacharek
- Department of Otolaryngology-Head and Neck Surgery, Michigan Medicine, Ann Arbor
| | - Mariel R Benjamin
- Division of Allergy and Clinical Immunology, Michigan Medicine, Ann Arbor
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15
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Yang J, Lei S. Efficacy and safety of sublingual versus subcutaneous immunotherapy in children with allergic rhinitis: a systematic review and meta-analysis. Front Immunol 2023; 14:1274241. [PMID: 38162647 PMCID: PMC10757840 DOI: 10.3389/fimmu.2023.1274241] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 11/17/2023] [Indexed: 01/03/2024] Open
Abstract
Aim To systematically compare the efficacy and safety of subcutaneous immunotherapy (SCIT) and sublingual immunotherapy (SLIT) in children with allergic rhinitis (AR). Methods PubMed, Embase, Cochrane Library, and Web of Science were searched from inception to March 2, 2023. Outcomes included symptom scores (SSs), medication scores (MSs), symptom and medication scores (SMSs), new sensitizations, development of asthma, improvement, and treatment-related adverse events (TRAEs). The quality of the included studies was assessed by the modified Jadad scale and Newcastle-Ottawa scale (NOS). Meta-regression was carried out to explore the source of heterogeneity. Subgroup analysis was further conducted in terms of study design [randomized controlled trials (RCTs), cohort studies], allergen [house dust mites (HDMs), grass pollen], treatment duration (≥ 24, 12-23 or < 12 months), allergen immunotherapy (AIT) modality (drops or tablets), and AIT protocol [continuous, pre-seasonal, co-seasonal, or after the grass pollen season (GPS)]. Sensitivity analysis was conducted for all outcomes. A Bayesian framework and a Monte Carlo Markov Chain (MCMC) model were developed for indirect comparison. Results Totally 50 studies with 10813 AR children were included, with 4122 treated with SLIT, 1852 treated with SCIT, and 4839 treated with non-SLIT or non-SCIT therapy. For direct comparison, the SLIT group had a similar SS to the SCIT group [pooled standardized mean difference (SMD): 0.41, 95% confidence interval (CI): -0.46, 1.28, P = 0.353]. Comparable MSs were observed in the SLIT and SCIT groups (pooled SMD: 0.82, 95%CI: -0.88, 2.53, P = 0.344). For indirect comparison, no significant differences were found in SSs (pooled SMD: 1.20, 95% credibility interval (CrI): -1.70, 4.10), MSs (pooled SMD: 0.57, 95%CrI: -1.20, 2.30), SMSs (pooled SMD: 1.80, 95%CrI: -0.005, 3.60), new sensitizations [pooled relative risk (RR): 0.34, 95%CrI: 0.03, 3.58], and development of asthma (pooled RR: 0.68, 95%CrI: 0.01, 26.33) between the SLIT and SCIT groups; the SLIT group illustrated a significantly lower incidence of TRAEs than the SCIT group (pooled RR: 0.17, 95%CrI: 0.11, 0.26). Conclusion Considering both efficacy and safety, SLIT might be a more favorable AIT than SCIT in the treatment of pediatric AR, which may serve as a decision-making reference for clinicians. Systematic review registration PROSPERO (CRD42023460693).
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Affiliation(s)
| | - Sihong Lei
- The Department of Otolaryngology-Head and Neck Surgery, Nanchong Central Hospital, Second Clinical Medical College of North Sichuan Medical College, Nanchong, Sichuan, China
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16
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Plum T, Binzberger R, Thiele R, Shang F, Postrach D, Fung C, Fortea M, Stakenborg N, Wang Z, Tappe-Theodor A, Poth T, MacLaren DAA, Boeckxstaens G, Kuner R, Pitzer C, Monyer H, Xin C, Bonventre JV, Tanaka S, Voehringer D, Vanden Berghe P, Strid J, Feyerabend TB, Rodewald HR. Mast cells link immune sensing to antigen-avoidance behaviour. Nature 2023; 620:634-642. [PMID: 37438525 PMCID: PMC10432277 DOI: 10.1038/s41586-023-06188-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [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: 06/12/2022] [Accepted: 05/10/2023] [Indexed: 07/14/2023]
Abstract
The physiological functions of mast cells remain largely an enigma. In the context of barrier damage, mast cells are integrated in type 2 immunity and, together with immunoglobulin E (IgE), promote allergic diseases. Allergic symptoms may, however, facilitate expulsion of allergens, toxins and parasites and trigger future antigen avoidance1-3. Here, we show that antigen-specific avoidance behaviour in inbred mice4,5 is critically dependent on mast cells; hence, we identify the immunological sensor cell linking antigen recognition to avoidance behaviour. Avoidance prevented antigen-driven adaptive, innate and mucosal immune activation and inflammation in the stomach and small intestine. Avoidance was IgE dependent, promoted by Th2 cytokines in the immunization phase and by IgE in the execution phase. Mucosal mast cells lining the stomach and small intestine rapidly sensed antigen ingestion. We interrogated potential signalling routes between mast cells and the brain using mutant mice, pharmacological inhibition, neural activity recordings and vagotomy. Inhibition of leukotriene synthesis impaired avoidance, but overall no single pathway interruption completely abrogated avoidance, indicating complex regulation. Collectively, the stage for antigen avoidance is set when adaptive immunity equips mast cells with IgE as a telltale of past immune responses. On subsequent antigen ingestion, mast cells signal termination of antigen intake. Prevention of immunopathology-causing, continuous and futile responses against per se innocuous antigens or of repeated ingestion of toxins through mast-cell-mediated antigen-avoidance behaviour may be an important arm of immunity.
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Affiliation(s)
- Thomas Plum
- Division for Cellular Immunology, German Cancer Research Center, Heidelberg, Germany.
| | - Rebecca Binzberger
- Division for Cellular Immunology, German Cancer Research Center, Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Robin Thiele
- Division for Cellular Immunology, German Cancer Research Center, Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Fuwei Shang
- Division for Cellular Immunology, German Cancer Research Center, Heidelberg, Germany
- Faculty of Medicine, Heidelberg University, Heidelberg, Germany
| | - Daniel Postrach
- Division for Cellular Immunology, German Cancer Research Center, Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Candice Fung
- Laboratory for Enteric NeuroScience Translational Research Center for Gastrointestinal Disorders, KU Leuven, Leuven, Belgium
| | - Marina Fortea
- Laboratory for Enteric NeuroScience Translational Research Center for Gastrointestinal Disorders, KU Leuven, Leuven, Belgium
| | - Nathalie Stakenborg
- Laboratory for Intestinal Neuroimmune Interactions, Department of Chronic Diseases, Metabolism and Ageing, Translational Research Center for Gastrointestinal Disorders, KU Leuven, Leuven, Belgium
| | - Zheng Wang
- Laboratory for Intestinal Neuroimmune Interactions, Department of Chronic Diseases, Metabolism and Ageing, Translational Research Center for Gastrointestinal Disorders, KU Leuven, Leuven, Belgium
| | | | - Tanja Poth
- Center for Model System and Comparative Pathology, Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Duncan A A MacLaren
- Department of Clinical Neurobiology of the Medical Faculty of Heidelberg University and German Cancer Research Center, Heidelberg, Germany
| | - Guy Boeckxstaens
- Laboratory for Intestinal Neuroimmune Interactions, Department of Chronic Diseases, Metabolism and Ageing, Translational Research Center for Gastrointestinal Disorders, KU Leuven, Leuven, Belgium
| | - Rohini Kuner
- Pharmacology Institute, Heidelberg University, Heidelberg, Germany
| | - Claudia Pitzer
- Interdisciplinary Neurobehavioral Core, Heidelberg University, Heidelberg, Germany
| | - Hannah Monyer
- Department of Clinical Neurobiology of the Medical Faculty of Heidelberg University and German Cancer Research Center, Heidelberg, Germany
| | - Cuiyan Xin
- Division of Renal Medicine and Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Joseph V Bonventre
- Division of Renal Medicine and Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Satoshi Tanaka
- Laboratory of Pharmacology, Division of Pathological Sciences, Kyoto Pharmaceutical University, Kyoto, Japan
| | - David Voehringer
- Department of Infection Biology, University Hospital Erlangen and Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - Pieter Vanden Berghe
- Laboratory for Enteric NeuroScience Translational Research Center for Gastrointestinal Disorders, KU Leuven, Leuven, Belgium
| | - Jessica Strid
- Department of Immunology and Inflammation, Imperial College London, London, UK
| | - Thorsten B Feyerabend
- Division for Cellular Immunology, German Cancer Research Center, Heidelberg, Germany
| | - Hans-Reimer Rodewald
- Division for Cellular Immunology, German Cancer Research Center, Heidelberg, Germany.
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17
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Florsheim EB, Bachtel ND, Cullen JL, Lima BGC, Godazgar M, Carvalho F, Chatain CP, Zimmer MR, Zhang C, Gautier G, Launay P, Wang A, Dietrich MO, Medzhitov R. Immune sensing of food allergens promotes avoidance behaviour. Nature 2023; 620:643-650. [PMID: 37437602 PMCID: PMC10432274 DOI: 10.1038/s41586-023-06362-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [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: 06/13/2022] [Accepted: 06/22/2023] [Indexed: 07/14/2023]
Abstract
In addition to its canonical function of protection from pathogens, the immune system can also alter behaviour1,2. The scope and mechanisms of behavioural modifications by the immune system are not yet well understood. Here, using mouse models of food allergy, we show that allergic sensitization drives antigen-specific avoidance behaviour. Allergen ingestion activates brain areas involved in the response to aversive stimuli, including the nucleus of tractus solitarius, parabrachial nucleus and central amygdala. Allergen avoidance requires immunoglobulin E (IgE) antibodies and mast cells but precedes the development of gut allergic inflammation. The ability of allergen-specific IgE and mast cells to promote avoidance requires cysteinyl leukotrienes and growth and differentiation factor 15. Finally, a comparison of C57BL/6 and BALB/c mouse strains revealed a strong effect of the genetic background on the avoidance behaviour. These findings thus point to antigen-specific behavioural modifications that probably evolved to promote niche selection to avoid unfavourable environments.
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Affiliation(s)
- Esther B Florsheim
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA.
- School of Life Sciences, Arizona State University, Tempe, AZ, USA.
- Biodesign Institute, Center for Health Through Microbiomes, Arizona State University, Tempe, AZ, USA.
| | - Nathaniel D Bachtel
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Jaime L Cullen
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Bruna G C Lima
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
- Department of Pharmacology, University of São Paulo, São Paulo, Brazil
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Mahdieh Godazgar
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Fernando Carvalho
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Carolina P Chatain
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Marcelo R Zimmer
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Cuiling Zhang
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Gregory Gautier
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS EMR8252, Université Paris Cité, Paris, France
| | - Pierre Launay
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS EMR8252, Université Paris Cité, Paris, France
| | - Andrew Wang
- Department of Medicine (Rheumatology, Allergy & Immunology), Yale University School of Medicine, New Haven, CT, USA
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Marcelo O Dietrich
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Ruslan Medzhitov
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA.
- Howard Hughes Medical Institute, Chevy Chase, MD, USA.
- Tananbaum Center for Theoretical and Analytical Human Biology, Yale University School of Medicine, New Haven, CT, USA.
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18
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Foo ACY, Nesbit JB, Gipson SAY, DeRose EF, Cheng H, Hurlburt BK, Kulis MD, Kim EH, Dreskin SC, Mustafa S, Maleki SJ, Mueller GA. Structure and IgE Cross-Reactivity among Cashew, Pistachio, Walnut, and Peanut Vicilin-Buried Peptides. J Agric Food Chem 2023; 71:2990-2998. [PMID: 36728846 PMCID: PMC10402694 DOI: 10.1021/acs.jafc.2c07061] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Peanut and tree-nut allergies are frequently comorbid for reasons not completely understood. Vicilin-buried peptides (VBPs) are an emerging family of food allergens whose conserved structural fold could mediate peanut/tree-nut co-allergy. Peptide microarrays were used to identify immunoglobulin E (IgE) epitopes from the N-terminus of the vicilin allergens Ara h 1, Ana o 1, Jug r 2, and Pis v 3 using serum from three patient diagnosis groups: monoallergic to either peanuts or cashew/pistachio, or dual allergic. IgE binding peptides were highly prevalent in the VBP domains AH1.1, AO1.1, JR2.1, and PV3.1, but not in AO1.2, JR2.2, JR2.3, and PV3.2 nor the unstructured regions. The IgE profiles did not correlate with diagnosis group. The structure of the VBPs from cashew and pistachio was solved using solution-NMR. Comparisons of structural features suggest that the VBP scaffold from peanuts and tree-nuts can support cross-reactivity. This may help understand comorbidity and cross-reactivity despite a distant evolutionary origin.
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Affiliation(s)
- Alexander C Y Foo
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, 111 T.W. Alexander Drive, MD-MR01, Durham, North Carolina 27709, United States
| | - Jacqueline B Nesbit
- Agricultural Research Service, United States Department of Agriculture, 1100 Allen Toussaint Boulevard, New Orleans, Louisiana 70124, United States
| | - Stephen A Y Gipson
- Agricultural Research Service, United States Department of Agriculture, 1100 Allen Toussaint Boulevard, New Orleans, Louisiana 70124, United States
| | - Eugene F DeRose
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, 111 T.W. Alexander Drive, MD-MR01, Durham, North Carolina 27709, United States
| | - Hsiaopo Cheng
- Agricultural Research Service, United States Department of Agriculture, 1100 Allen Toussaint Boulevard, New Orleans, Louisiana 70124, United States
| | - Barry K Hurlburt
- Agricultural Research Service, United States Department of Agriculture, 1100 Allen Toussaint Boulevard, New Orleans, Louisiana 70124, United States
| | - Michael D Kulis
- Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, North Carolina 27599-7220, United States
| | - Edwin H Kim
- Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, North Carolina 27599-7220, United States
| | - Stephen C Dreskin
- Division of Allergy and Clinical Immunology, University of Colorado Denver School of Medicine, Aurora, Colorado 80045-2560, United States
| | - Shahzad Mustafa
- Rochester Regional Health, University of Rochester School of Medicine and Dentistry, Rochester, New York 14642, United States
| | - Soheila J Maleki
- Agricultural Research Service, United States Department of Agriculture, 1100 Allen Toussaint Boulevard, New Orleans, Louisiana 70124, United States
| | - Geoffrey A Mueller
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, 111 T.W. Alexander Drive, MD-MR01, Durham, North Carolina 27709, United States
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19
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Abstract
Nineteen U.S. allergen extracts were standardized by the U.S. Food and Drug Administration (FDA) between 1987 and 1998, including of two house-dust mites, short ragweed, cat hair and cat pelt, seven temperate and one southern grass, and six Hymenoptera venom preparations. Relevant literature was reviewed. For each allergen, a "representative" extract was established; the potency of each representative extract was determined by measurement of the total protein content (Hymenoptera venom), radial diffusion measurement of the dominant allergen (short ragweed and cat), or, if there was no dominant allergen, then by quantitative skin testing by using the ID50EAL (intradermal dilution for 50 mm sum of erythema determines the bioequivalent allergy units) method. In vitro tests were developed to allow the manufacturer to demonstrate that each lot of its extract was statistically identical, within defined limits, to the FDA reference extract. These tests included radial immunodiffusion, competitive enzyme-linked immunosorbent assay, and isoelectric focusing. The standardized extracts offer the advantage of consistent potency from lot to lot for each manufacturer and also from manufacturer to manufacturer, and assure the presence of recognized significant allergens within the extract. Therefore, standardized extracts offer improved safety and efficacy over their nonstandardized predecessors.
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20
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Dai M, Zhu X, Yu J, Yuan J, Zhu Y, Bao Y, Yong X. CCR3 gene knockout in bone marrow cells ameliorates combined allergic rhinitis and asthma syndrome (CARAS) by reducing airway inflammatory cell infiltration and Th2 cytokines expression in mice model. Int Immunopharmacol 2022; 104:108509. [PMID: 34998035 DOI: 10.1016/j.intimp.2021.108509] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 10/28/2021] [Revised: 12/17/2021] [Accepted: 12/28/2021] [Indexed: 12/15/2022]
Abstract
The present study aims to investigate the effects of CCR3 gene knockout in bone marrow cells (CCR3-KO) on the mouse model of combined allergic rhinitis and asthma syndrome (CARAS). It was found that CCR3-KO significantly reduced eosinophil (EOS) migration into the nasal (NALF) and bronchoalveolar (BALF) cavities of mice, and decreased Th2 cytokines (such as, IL-4, IL-5 and IL-13) levels in nasal mucosa and lung tissues. In addition, histological analysis showed that the damage degree of nasal mucosa structure in ovalbumin (OVA) modulated CCR3-KO mice was significantly less than that in OVA modulated Wild type (WT) mice, with reduced inflammatory cell infiltration and nasal mucus secretion. The infiltration of inflammatory cells in lung tissue was significantly reduced, and the proliferation of lung smooth muscle layer and extracellular matrix (ECM) production were decreased. Symptom analysis showed that CCR3-KO can reduced allergic rhinitis (AR) signals as nose scratching and sneezing. It was also found CCR3-KO reduce OVA-induced weight loss. The results showed that CCR3-KO could reduce the symptoms of allergic inflammation in CARAS mice by reducing airway inflammatory cell infiltration and down-regulating the expression of Th2 cytokines, and CCR3 gene could be used as a target gene for the treatment of CARAS.
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Affiliation(s)
- MeiNa Dai
- The Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang City, Jiangxi Province, 330000, China.
| | - XinHua Zhu
- The Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang City, Jiangxi Province, 330000, China.
| | - Juan Yu
- The Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang City, Jiangxi Province, 330000, China.
| | - JiaSheng Yuan
- The Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang City, Jiangxi Province, 330000, China.
| | - Yv Zhu
- The Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang City, Jiangxi Province, 330000, China.
| | - YouWei Bao
- The Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang City, Jiangxi Province, 330000, China.
| | - XiaoZhuang Yong
- Institute of Translational Medicine, Nanchang University, 1299 Xuefu Avenue, Honggutan New District, Nanchang City, Jiangxi Province, 330000, China.
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21
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Pazos-Castro D, Gonzalez-Klein Z, Montalvo AY, Hernandez-Ramirez G, Romero-Sahagun A, Esteban V, Garrido-Arandia M, Tome-Amat J, Diaz-Perales A. NLRP3 priming due to skin damage precedes LTP allergic sensitization in a mouse model. Sci Rep 2022; 12:3329. [PMID: 35228630 PMCID: PMC8885703 DOI: 10.1038/s41598-022-07421-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 02/17/2022] [Indexed: 01/26/2023] Open
Abstract
Allergic sensitization is initiated by protein and epithelia interaction, although the molecular mechanisms leading this encounter toward an allergic phenotype remain unknown. Here, we apply the two-hit hypothesis of inflammatory diseases to the study of food allergy sensitization. First, we studied the effects of long-term depilation in mice by analyzing samples at different time points. Several weeks of depilation were needed until clear immunological changes were evidenced, starting with upregulation of NLRP3 protein levels, which was followed by overexpression of Il1b and Il18 transcripts. Secondly, we assessed the effects of allergen addition (in this case, Pru p 3 in complex with its natural lipid ligand) over depilated skin. Systemic sensitization was evaluated by intraperitoneal provocation with Pru p 3 and measure of body temperature. Anaphylaxis was achieved, but only in mice sensitized with Prup3_complex and not treated with the NLRP3 inhibitor MCC950, thus demonstrating the importance of both hits (depilation + allergen addition) in the consecution of the allergic phenotype. In addition, allergen encounter (but not depilation) promoted skin remodeling, as well as CD45+ infiltration not only in the sensitized area (the skin), but across several mucosal tissues (skin, lungs, and gut), furtherly validating the systemization of the response. Finally, a low-scale study with human ILC2s is reported, where we demonstrate that Prup3_complex can induce their phenotype switch (↑CD86, ↑S1P1) when cultured in vitro, although more data is needed to understand the implications of these changes in food allergy development.
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Affiliation(s)
- Diego Pazos-Castro
- Centro de Biotecnología y Genómica de Plantas (CBGP), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid (UPM), Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Madrid, Spain
| | - Zulema Gonzalez-Klein
- Centro de Biotecnología y Genómica de Plantas (CBGP), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid (UPM), Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Madrid, Spain
| | | | - Guadalupe Hernandez-Ramirez
- Centro de Biotecnología y Genómica de Plantas (CBGP), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid (UPM), Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Madrid, Spain
| | - Alejandro Romero-Sahagun
- Centro de Biotecnología y Genómica de Plantas (CBGP), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid (UPM), Madrid, Spain
| | - Vanesa Esteban
- IIS-Fundación Jiménez Díaz, Universidad Autónoma de Madrid, Madrid, Spain
| | - Maria Garrido-Arandia
- Centro de Biotecnología y Genómica de Plantas (CBGP), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid (UPM), Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Madrid, Spain
| | - Jaime Tome-Amat
- Centro de Biotecnología y Genómica de Plantas (CBGP), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid (UPM), Madrid, Spain.
| | - Araceli Diaz-Perales
- Centro de Biotecnología y Genómica de Plantas (CBGP), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid (UPM), Madrid, Spain.
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Madrid, Spain.
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22
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Foo AC, Nesbit JB, Gipson SA, Cheng H, Bushel P, DeRose EF, Schein CH, Teuber SS, Hurlburt BK, Maleki SJ, Mueller GA. Structure, Immunogenicity, and IgE Cross-Reactivity among Walnut and Peanut Vicilin-Buried Peptides. J Agric Food Chem 2022; 70:2389-2400. [PMID: 35139305 PMCID: PMC8959100 DOI: 10.1021/acs.jafc.1c07225] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Vicilin-buried peptides (VBPs) from edible plants are derived from the N-terminal leader sequences (LSs) of seed storage proteins. VBPs are defined by a common α-hairpin fold mediated by conserved CxxxCx(10-14)CxxxC motifs. Here, peanut and walnut VBPs were characterized as potential mediators of both peanut/walnut allergenicity and cross-reactivity despite their low (∼17%) sequence identity. The structures of one peanut (AH1.1) and 3 walnut (JR2.1, JR2.2, JR2.3) VBPs were solved using solution NMR, revealing similar α-hairpin structures stabilized by disulfide bonds with high levels of surface similarity. Peptide microarrays identified several peptide sequences primarily on AH1.1 and JR2.1, which were recognized by peanut-, walnut-, and dual-allergic patient IgE, establishing these peanut and walnut VBPs as potential mediators of allergenicity and cross-reactivity. JR2.2 and JR2.3 displayed extreme resilience against endosomal digestion, potentially hindering epitope generation and likely contributing to their reduced allergic potential.
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Affiliation(s)
- Alexander C.Y. Foo
- National Institute of Environmental Health Sciences, 111 T.W. Alexander Dr, MD-MR01, Research Triangle Park, NC 27615
| | - Jacqueline B. Nesbit
- US Department of Agriculture -Agricultural Research Service, 1100 Robert E. Lee Blvd, New Orleans, LA 70122
| | - Stephen A.Y. Gipson
- US Department of Agriculture -Agricultural Research Service, 1100 Robert E. Lee Blvd, New Orleans, LA 70122
| | - Hsiaopo Cheng
- US Department of Agriculture -Agricultural Research Service, 1100 Robert E. Lee Blvd, New Orleans, LA 70122
| | - Pierre Bushel
- National Institute of Environmental Health Sciences, 111 T.W. Alexander Dr, MD-MR01, Research Triangle Park, NC 27615
| | - Eugene F. DeRose
- National Institute of Environmental Health Sciences, 111 T.W. Alexander Dr, MD-MR01, Research Triangle Park, NC 27615
| | - Catherine H. Schein
- Department of Biochemistry and Molecular Biology, Institute for Human Infections and Immunity, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555
| | - Suzanne S. Teuber
- University of California Davis School of Medicine, 2315 Stockton Blvd, Sacramento, CA 95817
| | - Barry K. Hurlburt
- US Department of Agriculture -Agricultural Research Service, 1100 Robert E. Lee Blvd, New Orleans, LA 70122
| | - Soheila J. Maleki
- US Department of Agriculture -Agricultural Research Service, 1100 Robert E. Lee Blvd, New Orleans, LA 70122
| | - Geoffrey A. Mueller
- National Institute of Environmental Health Sciences, 111 T.W. Alexander Dr, MD-MR01, Research Triangle Park, NC 27615
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Whitehead GS, Thomas SY, Nakano K, Royer DJ, Burke CG, Nakano H, Cook DN. A neutrophil/TGF-β axis limits the pathogenicity of allergen-specific CD4+ T cells. JCI Insight 2022; 7:150251. [PMID: 35191395 PMCID: PMC8876454 DOI: 10.1172/jci.insight.150251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 01/05/2022] [Indexed: 11/17/2022] Open
Abstract
The intensity and longevity of inflammatory responses to inhaled allergens is determined largely by the balance between effector and regulatory immune responses, but the mechanisms that determine the relative magnitudes of these opposing forces remain poorly understood. We have found that the type of adjuvant used during allergic sensitization has a profound effect on both the nature and longevity of the pulmonary inflammation triggered by subsequent reexposure to that same provoking allergen. TLR ligand adjuvants and house dust extracts primed immune responses characterized by a mixed neutrophilic and eosinophilic inflammation that was suppressed by multiple daily allergen challenges. During TLR ligand–mediated allergic sensitization, mice displayed transient airway neutrophilia, which triggered the release of TGF-β into the airway. This neutrophil-dependent production of TGF-β during sensitization had a delayed, suppressive effect on eosinophilic responses to subsequent allergen challenge. Neutrophil depletion during sensitization did not affect numbers of Foxp3+ Tregs but increased proportions of Gata3+CD4+ T cells, which, upon their transfer to recipient mice, triggered stronger eosinophilic inflammation. Thus, a neutrophil/TGF-β axis acts during TLR-mediated allergic sensitization to fine-tune the phenotype of developing allergen-specific CD4+ T cells and limit their pathogenicity, suggesting a novel immunotherapeutic approach to control eosinophilia in asthma.
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Nuñez R, Rodriguez MJ, Palomares F, Gomez F, Jabato FM, Cordoba-Caballero J, Seoane P, Losada J, Rojo J, Torres MJ, Perkins JR, Mayorga C. Transcriptional changes in dendritic cells underlying allergen specific induced tolerance in a mouse model. Sci Rep 2022; 12:2797. [PMID: 35181694 PMCID: PMC8857182 DOI: 10.1038/s41598-022-06186-8] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 01/14/2022] [Indexed: 12/13/2022] Open
Abstract
To investigate food allergy-tolerance mechanisms induced through allergen-specific immunotherapy we used RNA-Sequencing to measure gene expression in lymph-node-derived dendritic cells from Pru p 3-anaphylactic mice after immunotherapy with glycodendropeptides at 2 nM and 5 nM, leading to permanent tolerance and short-term desensitization, respectively. Gene expression was also measured in mice receiving no immunotherapy (anaphylaxis); and in which anaphylaxis could never occur (antigen-only). Compared to anaphylaxis, the antigen-only group showed the greatest number of expression-changes (411), followed by tolerant (186) and desensitized (119). Only 29 genes changed in all groups, including Il12b, Cebpb and Ifngr1. The desensitized group showed enrichment for genes related to chronic inflammatory response, secretory granule, and regulation of interleukin-12 production; the tolerant group showed genes related to cytokine receptor activity and glucocorticoid receptor binding, suggesting distinct pathways for similar outcomes. We identified genes and processes potentially involved in the restoration of long-term tolerance via allergen-specific immunotherapy, representing potential prognostic biomarkers.
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Affiliation(s)
- Rafael Nuñez
- Allergy Research Group, Research Laboratory, Allergy Unit, Hospital Regional Universitario de Málaga-IBIMA, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009, Málaga, Spain
| | - Maria Jose Rodriguez
- Allergy Research Group, Research Laboratory, Allergy Unit, Hospital Regional Universitario de Málaga-IBIMA, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009, Málaga, Spain
| | - Francisca Palomares
- Allergy Research Group, Research Laboratory, Allergy Unit, Hospital Regional Universitario de Málaga-IBIMA, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009, Málaga, Spain
| | - Francisca Gomez
- Allergy Clinical Unit, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Fernando M Jabato
- Department of Molecular Biology and Biochemistry, University of Malaga, Malaga, Spain
| | | | - Pedro Seoane
- Department of Molecular Biology and Biochemistry, University of Malaga, Malaga, Spain
- CIBER de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
| | - Jorge Losada
- Laboratory of Carbohydrates, Instituto de Investigaciones Químicas (IIQ), CSIC-Universidad de Sevilla, Sevilla, Spain
| | - Javier Rojo
- Laboratory of Carbohydrates, Instituto de Investigaciones Químicas (IIQ), CSIC-Universidad de Sevilla, Sevilla, Spain
| | - Maria Jose Torres
- Allergy Research Group, Research Laboratory, Allergy Unit, Hospital Regional Universitario de Málaga-IBIMA, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009, Málaga, Spain
- Allergy Clinical Unit, Hospital Regional Universitario de Málaga, Málaga, Spain
- Nanostructures for Diagnosing and Treatment of Allergic Diseases Laboratory, Centro Andaluz de Nanomedicina y Biotecnología-BIONAND, Málaga, Spain
- Medicine Department, Universidad de Málaga-UMA, Málaga, Spain
| | - James Richard Perkins
- Allergy Research Group, Research Laboratory, Allergy Unit, Hospital Regional Universitario de Málaga-IBIMA, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009, Málaga, Spain
- Department of Molecular Biology and Biochemistry, University of Malaga, Malaga, Spain
- CIBER de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
| | - Cristobalina Mayorga
- Allergy Research Group, Research Laboratory, Allergy Unit, Hospital Regional Universitario de Málaga-IBIMA, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009, Málaga, Spain.
- Allergy Clinical Unit, Hospital Regional Universitario de Málaga, Málaga, Spain.
- Nanostructures for Diagnosing and Treatment of Allergic Diseases Laboratory, Centro Andaluz de Nanomedicina y Biotecnología-BIONAND, Málaga, Spain.
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25
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Fu Y, Wang J, Zhou B, Pajulas A, Gao H, Ramdas B, Koh B, Ulrich BJ, Yang S, Kapur R, Renauld JC, Paczesny S, Liu Y, Tighe RM, Licona-Limón P, Flavell RA, Takatsuka S, Kitamura D, Tepper RS, Sun J, Kaplan MH. An IL-9-pulmonary macrophage axis defines the allergic lung inflammatory environment. Sci Immunol 2022; 7:eabi9768. [PMID: 35179949 PMCID: PMC8991419 DOI: 10.1126/sciimmunol.abi9768] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Despite IL-9 functioning as a pleiotropic cytokine in mucosal environments, the IL-9-responsive cell repertoire is still not well defined. Here, we found that IL-9 mediates proallergic activities in the lungs by targeting lung macrophages. IL-9 inhibits alveolar macrophage expansion and promotes recruitment of monocytes that develop into CD11c+ and CD11c- interstitial macrophage populations. Interstitial macrophages were required for IL-9-dependent allergic responses. Mechanistically, IL-9 affected the function of lung macrophages by inducing Arg1 activity. Compared with Arg1-deficient lung macrophages, Arg1-expressing macrophages expressed greater amounts of CCL5. Adoptive transfer of Arg1+ lung macrophages but not Arg1- lung macrophages promoted allergic inflammation that Il9r-/- mice were protected against. In parallel, the elevated expression of IL-9, IL-9R, Arg1, and CCL5 was correlated with disease in patients with asthma. Thus, our study uncovers an IL-9/macrophage/Arg1 axis as a potential therapeutic target for allergic airway inflammation.
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Affiliation(s)
- Yongyao Fu
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Jocelyn Wang
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Baohua Zhou
- Department of Pediatrics and Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Abigail Pajulas
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Hongyu Gao
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Baskar Ramdas
- Department of Pediatrics and Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Byunghee Koh
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Benjamin J Ulrich
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Shuangshuang Yang
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Reuben Kapur
- Department of Pediatrics and Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Jean-Christophe Renauld
- Ludwig Institute for Cancer Research, Experimental Medicine Unit, Université Catholique de Louvain, Brussels, 1200 Belgium
| | - Sophie Paczesny
- Department of Microbiology and Immunology, Medical University of South Carolina, 171 Ashley Avenue, Charleston, SC 29425
| | - Yunlong Liu
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Robert M Tighe
- Division of Pulmonary, Allergy, and Critical Care Medicine, Duke University Medical Center, Durham, NC 27710, United States
| | - Paula Licona-Limón
- Departamento de Biologia Celular y del Desarrollo, Instituto de Fisiologia Celular, Universidad Nacional Autónoma de México, 04510, Mexico City, Mexico
| | - Richard A. Flavell
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Shogo Takatsuka
- Division of Molecular Biology, Research Institute for Biomedical Sciences (RIBS), Tokyo University of Science, Noda, Japan
| | - Daisuke Kitamura
- Division of Molecular Biology, Research Institute for Biomedical Sciences (RIBS), Tokyo University of Science, Noda, Japan
| | - Robert S. Tepper
- Department of Pediatrics and Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Jie Sun
- Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Mark H Kaplan
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
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Putcha N, Woo H, McCormack MC, Fawzy A, Romero K, Davis MF, Wise RA, Diette GB, Koehler K, Matsui EC, Hansel NN. Home Dust Allergen Exposure Is Associated with Outcomes among Sensitized Individuals with Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med 2022; 205:412-420. [PMID: 34752729 PMCID: PMC8886951 DOI: 10.1164/rccm.202103-0583oc] [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: 03/05/2021] [Accepted: 11/09/2021] [Indexed: 11/16/2022] Open
Abstract
Rationale: Environmental exposures have been associated with adverse outcomes in chronic obstructive pulmonary disease (COPD). Approximately one-third of individuals with COPD have allergic sensitization, but it is unknown whether exposure to allergens in the home is associated with outcomes. Objectives: To determine the prevalence and associations of allergen sensitization with exposure to common indoor allergens with symptoms and exacerbation risk in COPD. Methods: Allergen sensitization to five common indoor allergens was assessed in former smokers with COPD. Home settled dust was assessed for presence of corresponding allergens. Sensitization and exposure status was determined and associations evaluated in adjusted models with longitudinal outcomes including symptoms, lung function, and exacerbations. Interactions were assessed between sensitization/exposure status and lung function. Measurements and Main Results: One hundred eighty-three individuals studied were on average 67.3 years of age (SD, 8.22) with average FEV1 of 53.2% (SD, 17.6%). Seventy-seven percent of participants were exposed to at least one tested allergen, and 17% had sensitization with corresponding allergen exposure. After adjustment, sensitization with exposure was associated with lower lung function (β, -8.29; 95% confidence interval [CI], -14.80 to -1.77), higher St. George's Respiratory Questionnaire Total Score (β, 6.71; 95% CI, 0.17 to 13.25), and higher exacerbation risk (odds ratio, 2.31; 95% CI, 1.11 to 4.79). Associations appeared to be more pronounced among individuals with lower lung function. Conclusions: Allergen exposures are common in COPD and associated with adverse outcomes among those with concomitant allergen sensitization. This study establishes allergens as an important home exposure that potentially could be addressed with comprehensive home environmental modification strategies to improve COPD outcomes.
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Affiliation(s)
- Nirupama Putcha
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Han Woo
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Meredith C. McCormack
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Ashraf Fawzy
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Karina Romero
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Meghan F. Davis
- Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland; and
| | - Robert A. Wise
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Gregory B. Diette
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Kirsten Koehler
- Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland; and
| | | | - Nadia N. Hansel
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
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Olivieri M, Spiteri G, Brandi J, Cecconi D, Fusi M, Zanoni G, Rizzi C. Glucose/Ribitol Dehydrogenase and 16.9 kDa Class I Heat Shock Protein 1 as Novel Wheat Allergens in Baker’s Respiratory Allergy. Molecules 2022; 27:molecules27041212. [PMID: 35209002 PMCID: PMC8875590 DOI: 10.3390/molecules27041212] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/28/2022] [Accepted: 01/29/2022] [Indexed: 02/06/2023] Open
Abstract
Wheat allergens are responsible for symptoms in 60–70% of bakers with work-related allergy, and knowledge, at the molecular level, of this disorder is progressively accumulating. The aim of the present study is to investigate the panel of wheat IgE positivity in allergic Italian bakers, evaluating a possible contribution of novel wheat allergens included in the water/salt soluble fraction. The water/salt-soluble wheat flour proteins from the Italian wheat cultivar Bolero were separated by using 1-DE and 2-DE gel electrophoresis. IgE-binding proteins were detected using the pooled sera of 26 wheat allergic bakers by immunoblotting and directly recognized in Coomassie stained gel. After a preparative electrophoretic step, two enriched fractions were furtherly separated in 2-DE allowing for detection, by Coomassie, of three different proteins in the range of 21–27 kDa that were recognized by the pooled baker’s IgE. Recovered spots were analyzed by nanoHPLC Chip tandem mass spectrometry (MS/MS). The immunodetected spots in 2D were subjected to mass spectrometry (MS) analysis identifying two new allergenic proteins: a glucose/ribitol dehydrogenase and a 16.9 kDa class I heat shock protein 1. Mass spectrometer testing of flour proteins of the wheat cultivars utilized by allergic bakers improves the identification of until now unknown occupational wheat allergens.
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Affiliation(s)
- Mario Olivieri
- Unit of Occupational Medicine, Department of Diagnostic and Public Health, University of Verona, 37134 Verona, Italy; (M.O.); (G.S.)
| | - Gianluca Spiteri
- Unit of Occupational Medicine, Department of Diagnostic and Public Health, University of Verona, 37134 Verona, Italy; (M.O.); (G.S.)
| | - Jessica Brandi
- Department of Biotechnology, University of Verona, 37134 Verona, Italy; (J.B.); (D.C.); (M.F.)
| | - Daniela Cecconi
- Department of Biotechnology, University of Verona, 37134 Verona, Italy; (J.B.); (D.C.); (M.F.)
| | - Marina Fusi
- Department of Biotechnology, University of Verona, 37134 Verona, Italy; (J.B.); (D.C.); (M.F.)
| | - Giovanna Zanoni
- Immunology Unit, University Hospital of Verona, 37135 Verona, Italy;
| | - Corrado Rizzi
- Department of Biotechnology, University of Verona, 37134 Verona, Italy; (J.B.); (D.C.); (M.F.)
- Correspondence:
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28
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Ruiz-Leon B, Serrano P, Vidal C, Moreno-Aguilar C. Management of Double Sensitization to Vespids in Europe. Toxins (Basel) 2022; 14:toxins14020126. [PMID: 35202153 PMCID: PMC8880449 DOI: 10.3390/toxins14020126] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/24/2022] [Accepted: 02/03/2022] [Indexed: 12/10/2022] Open
Abstract
Wasp allergy with a diagnostic profile of double sensitizations to vespid venom is a frequent clinical problem in areas where different genera of wasps are present. Identification of the insect responsible for serious reactions poses a diagnostic challenge as the only effective treatment to date is immunotherapy based on the specific venom. In southern Europe, the double sensitization to Vespula and Polistes venoms is highly frequent. It has been shown that the major allergenic proteins (Phospholipase A1 and Antigen 5) share sequences across the different genera and species, which would be the cause of cross-reactivity. Additionally, the minor allergens (Dipeptidyl-peptidases, Vitellogenins) have been found to share partial sequence identity. Furthermore, venom contains other homologous proteins whose allergenic nature still remains to be clarified. The traditional diagnostic tools available are insufficient to discriminate between allergy to Vespula and Polistes in a high number of cases. IgE inhibition is the technique that best identifies the cross-reactivity. When a double sensitization has indeed been shown to exist or great uncertainty surrounds the primary sensitization, therapy with two venoms is advisable to guarantee the safety of the patient. In this case, a strategy involving alternate administration that combines effectiveness with efficiency is possible.
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Affiliation(s)
- Berta Ruiz-Leon
- Allergy Section of University Hospital Reina Sofia-IMIBIC, ARADyAL Network, National Institute of Health Carlos III, 14005 Cordoba, Spain; (B.R.-L.); (C.M.-A.)
| | - Pilar Serrano
- Allergy Section of University Hospital Reina Sofia-IMIBIC, ARADyAL Network, National Institute of Health Carlos III, 14005 Cordoba, Spain; (B.R.-L.); (C.M.-A.)
- Correspondence:
| | - Carmen Vidal
- Allergy Department of Complejo Hospitalario Universitario de Santiago de Compostela, 15706 Santiago de Compostela, Spain;
| | - Carmen Moreno-Aguilar
- Allergy Section of University Hospital Reina Sofia-IMIBIC, ARADyAL Network, National Institute of Health Carlos III, 14005 Cordoba, Spain; (B.R.-L.); (C.M.-A.)
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29
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Jones SM, Kim EH, Nadeau KC, Nowak-Wegrzyn A, Wood RA, Sampson HA, Scurlock AM, Chinthrajah S, Wang J, Pesek RD, Sindher SB, Kulis M, Johnson J, Spain K, Babineau DC, Chin H, Laurienzo-Panza J, Yan R, Larson D, Qin T, Whitehouse D, Sever ML, Sanda S, Plaut M, Wheatley LM, Burks AW. Efficacy and safety of oral immunotherapy in children aged 1-3 years with peanut allergy (the Immune Tolerance Network IMPACT trial): a randomised placebo-controlled study. Lancet 2022; 399:359-371. [PMID: 35065784 PMCID: PMC9119642 DOI: 10.1016/s0140-6736(21)02390-4] [Citation(s) in RCA: 119] [Impact Index Per Article: 59.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 09/14/2021] [Accepted: 10/26/2021] [Indexed: 01/24/2023]
Abstract
BACKGROUND For young children with peanut allergy, dietary avoidance is the current standard of care. We aimed to assess whether peanut oral immunotherapy can induce desensitisation (an increased allergic reaction threshold while on therapy) or remission (a state of non-responsiveness after discontinuation of immunotherapy) in this population. METHODS We did a randomised, double-blind, placebo-controlled study in five US academic medical centres. Eligible participants were children aged 12 to younger than 48 months who were reactive to 500 mg or less of peanut protein during a double-blind, placebo-controlled food challenge (DBPCFC). Participants were randomly assigned by use of a computer, in a 2:1 allocation ratio, to receive peanut oral immunotherapy or placebo for 134 weeks (2000 mg peanut protein per day) followed by 26 weeks of avoidance, with participants and study staff and investigators masked to group treatment assignment. The primary outcome was desensitisation at the end of treatment (week 134), and remission after avoidance (week 160), as the key secondary outcome, were assessed by DBPCFC to 5000 mg in the intention-to-treat population. Safety and immunological parameters were assessed in the same population. This trial is registered on ClinicalTrials.gov, NCT03345160. FINDINGS Between Aug 13, 2013, and Oct 1, 2015, 146 children, with a median age of 39·3 months (IQR 30·8-44·7), were randomly assigned to receive peanut oral immunotherapy (96 participants) or placebo (50 participants). At week 134, 68 (71%, 95% CI 61-80) of 96 participants who received peanut oral immunotherapy compared with one (2%, 0·05-11) of 50 who received placebo met the primary outcome of desensitisation (risk difference [RD] 69%, 95% CI 59-79; p<0·0001). The median cumulative tolerated dose during the week 134 DBPCFC was 5005 mg (IQR 3755-5005) for peanut oral immunotherapy versus 5 mg (0-105) for placebo (p<0·0001). After avoidance, 20 (21%, 95% CI 13-30) of 96 participants receiving peanut oral immunotherapy compared with one (2%, 0·05-11) of 50 receiving placebo met remission criteria (RD 19%, 95% CI 10-28; p=0·0021). The median cumulative tolerated dose during the week 160 DBPCFC was 755 mg (IQR 0-2755) for peanut oral immunotherapy and 0 mg (0-55) for placebo (p<0·0001). A significant proportion of participants receiving peanut oral immunotherapy who passed the 5000 mg DBPCFC at week 134 could no longer tolerate 5000 mg at week 160 (p<0·001). The participant receiving placebo who was desensitised at week 134 also achieved remission at week 160. Compared with placebo, peanut oral immunotherapy decreased peanut-specific and Ara h2-specific IgE, skin prick test, and basophil activation, and increased peanut-specific and Ara h2-specific IgG4 at weeks 134 and 160. By use of multivariable regression analysis of participants receiving peanut oral immunotherapy, younger age and lower baseline peanut-specific IgE was predictive of remission. Most participants (98% with peanut oral immunotherapy vs 80% with placebo) had at least one oral immunotherapy dosing reaction, predominantly mild to moderate and occurring more frequently in participants receiving peanut oral immunotherapy. 35 oral immunotherapy dosing events with moderate symptoms were treated with epinephrine in 21 participants receiving peanut oral immunotherapy. INTERPRETATION In children with a peanut allergy, initiation of peanut oral immunotherapy before age 4 years was associated with an increase in both desensitisation and remission. Development of remission correlated with immunological biomarkers. The outcomes suggest a window of opportunity at a young age for intervention to induce remission of peanut allergy. FUNDING National Institute of Allergy and Infectious Disease, Immune Tolerance Network.
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Affiliation(s)
- Stacie M Jones
- Department of Pediatrics, University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock, AR, USA.
| | - Edwin H Kim
- Departments of Medicine and Pediatrics, University of North Carolina, Chapel Hill, NC, USA
| | - Kari C Nadeau
- Department of Pediatrics and Sean N Parker Center for Allergy and Asthma Research, Stanford University, Palo Alto, CA, USA
| | - Anna Nowak-Wegrzyn
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Pediatrics, New York University Langone Health, New York, NY, USA
| | - Robert A Wood
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Hugh A Sampson
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Amy M Scurlock
- Department of Pediatrics, University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock, AR, USA
| | - Sharon Chinthrajah
- Department of Pediatrics and Sean N Parker Center for Allergy and Asthma Research, Stanford University, Palo Alto, CA, USA
| | - Julie Wang
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Robert D Pesek
- Department of Pediatrics, University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock, AR, USA
| | - Sayantani B Sindher
- Department of Pediatrics and Sean N Parker Center for Allergy and Asthma Research, Stanford University, Palo Alto, CA, USA
| | - Mike Kulis
- Departments of Medicine and Pediatrics, University of North Carolina, Chapel Hill, NC, USA
| | | | | | | | | | - Joy Laurienzo-Panza
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Rachel Yan
- The Immune Tolerance Network, San Francisco, CA, USA
| | | | - Tielin Qin
- The Immune Tolerance Network, Bethesda, MD, USA
| | | | | | - Srinath Sanda
- The Immune Tolerance Network, San Francisco, CA, USA
| | - Marshall Plaut
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Lisa M Wheatley
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - A Wesley Burks
- Departments of Medicine and Pediatrics, University of North Carolina, Chapel Hill, NC, USA
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30
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Katoh S. Critical Involvement of CD44 in T Helper Type 2 Cell-Mediated Eosinophilic Airway Inflammation in a Mouse Model of Acute Asthma. Front Immunol 2022; 12:811600. [PMID: 35069598 PMCID: PMC8777095 DOI: 10.3389/fimmu.2021.811600] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/15/2021] [Indexed: 11/13/2022] Open
Abstract
Interactions between CD44 and hyaluronan (HA) are crucial for recruiting leukocytes to inflamed tissues. This review summarizes findings from our studies of the roles of CD44-HA interactions in leukocyte trafficking, with a particular focus on airway T helper type 2 (Th2) cells in mouse models of acute asthma. In a mite allergen-induced model of acute asthma, intraperitoneal injection of anti-CD44 monoclonal antibodies blocked lymphocytes and eosinophils from accumulating in the lung, and suppressed both the antigen-induced increase in Th2 cytokines in the bronchoalveolar lavage fluid (BALF) and airway hyperresponsiveness (AHR). CD44 deficiency was associated with decreased mite allergen-induced Th2 cell-mediated airway inflammation and AHR in sensitized mice. Asthmatic responses to antigen-sensitized splenic CD4+ T cells transferred from CD44-deficient mice were weaker than in wild-type mice. Administration of anti-CD44 monoclonal antibodies preferentially suppressed the airway accumulation of antigen-specific Th2 cells induced by antigen challenge, without affecting Th1 and Th17 cells. Increased HA-binding ability of CD44 and expression of Neu1 sialidase were observed on antigen-specific Th2 cells compared with antigen-specific Th1 and Th17 cells. Finally, in a mouse model of acute asthma, neuraminidase 1-deficient SM/J mice exhibited a lower Th2 cytokine concentration and a lower absolute Th2 cell number in the BALF, as well as an attenuated AHR. Our findings indicate that CD44 critically contributes to the antigen challenge-induced airway accumulation of antigen-specific Th2 cells, without affecting Th1 and Th17 cells, in mice. Furthermore, neuraminidase 1 activity is necessary for the interaction between HA and CD44, and Th2 cell-mediated airway inflammation.
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Affiliation(s)
- Shigeki Katoh
- Department of Respiratory Medicine, Kawasaki Medical School, Okayama, Japan
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Yonekura S, Gotoh M, Okano M, Kurokawa T, Maekawa Y, Okubo K, Okamoto Y. Japanese cedar pollen sublingual immunotherapy is effective in treating seasonal allergic rhinitis during the pollen dispersal period for Japanese cedar and Japanese cypress. Allergol Int 2022; 71:140-143. [PMID: 34509370 DOI: 10.1016/j.alit.2021.08.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 07/21/2021] [Accepted: 07/30/2021] [Indexed: 11/16/2022] Open
Affiliation(s)
- Syuji Yonekura
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Minoru Gotoh
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Mitsuhiro Okano
- Department of Otorhinolaryngology, International University of Health and Welfare, Chiba, Japan
| | - Tomoya Kurokawa
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan; Clinical Research Center, Chiba University Hospital, Chiba, Japan
| | - Yuriko Maekawa
- Department of Medical Affairs, Torii Pharmaceutical Co., Ltd., Tokyo, Japan.
| | - Kimihiro Okubo
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Yoshitaka Okamoto
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan; Chiba Rousai Hospital, Chiba, Japan
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Erlich D. Peanut Allergen Powder (Palforzia) for Peanut Allergy. Am Fam Physician 2022; 105:20-21. [PMID: 35029941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Deborah Erlich
- Tufts University School of Medicine, Department of Family Medicine, Boston, MA, USA
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Kim E, Bonnegarde-Bernard A, Opiyo SO, Joldrichsen MR, Attia Z, Ahmer BH, Cormet-Boyaka E, Boyaka PN. Pollutants enhance IgE sensitization in the gut via local alteration of vitamin D-metabolizing enzymes. Mucosal Immunol 2022; 15:143-153. [PMID: 34504311 PMCID: PMC10655957 DOI: 10.1038/s41385-021-00440-4] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/14/2021] [Accepted: 07/31/2021] [Indexed: 02/04/2023]
Abstract
Mechanisms linking ingested pollutants to increased incidence of allergy are poorly understood. We report that mice exposed to low doses of cadmium develop higher IgE responses following oral allergen sensitization and more severe allergic symptoms upon allergen challenge. The environmentally relevant doses of this pollutant also induced oxidative/inflammatory responses in the gut of SPF, but not germ-free mice. Interestingly, the increased IgE responses correlated with stimulation of the vitamin D3-metabolizing enzymes CYP27B1 and CYP24A1 in the gut and increased luminal levels of oxidized vitamin D3 metabolites that are not ligands of the vitamin D receptor. Inhibition of CYP27B1 and CYP24A1 via oral administration of pharmacological inhibitors reduced IgE responses induced in mice orally exposed to cadmium. Our findings identify local alteration of vitamin D signaling as a new mechanism for induction of IgE responses by environmental pollutants. They also identify vitamin D3-metabolizing enzymes as therapeutic targets for the treatment of allergy.
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Affiliation(s)
- Eunsoo Kim
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, USA
| | | | - Stephen O Opiyo
- Molecular, Cellular Imaging Center-Columbus, The Ohio State University, Columbus, OH, USA
| | - Marisa R Joldrichsen
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, USA
| | - Zayed Attia
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, USA
| | - Brian H Ahmer
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA
| | | | - Prosper N Boyaka
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, USA.
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA.
- Infection Diseases Institute, The Ohio State University, Columbus, OH, USA.
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Blanco O, Ramírez W, Lugones Y, Díaz E, Morejón A, Rodríguez VS, Alfonso W, Labrada A. Protective effects of Surfacen® in allergen-induced asthma mice model. Int Immunopharmacol 2022; 102:108391. [PMID: 34836793 DOI: 10.1016/j.intimp.2021.108391] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 11/23/2022]
Abstract
Airway obstruction with increased airway resistance in asthma, commonly caused by smooth muscle constriction, mucosal edema and fluid secretion into the airway lumen, may partly be due to a poor function of pulmonary surfactant. Surfacen®, a clinical pulmonary surfactant, has anti-inflammatory action, but its effect on asthma has not been studied. This work aimed to evaluate the effect of Surfacen® in a murine allergen-induced acute asthma model, using house dust mite allergens. In a therapeutic experimental setting, mice were first sensitized by being administered with two doses (sc) of Dermatophagoides siboney allergen in aluminum hydroxide followed by one intranasal administration of the allergen. Then, sensitized mice were administered with aerosol of hypertonic 3% NaCl, Salbutamol 0.15 mg/kg, or Surfacen® 16 mg in a whole-body chamber on days 22, 23, and 24. Further, mice were subjected to aerosol allergen challenge on day 25. Surfacen® showed bronchial dilation and inhibition of Th2 inflammation (lower levels of IL-5 and IL-13 in broncoalveolar lavage) which increased IFN-γ and unchanged IL-10 in BAL. Moreover, Sufacen® administration was associated with a marked inhibition of the serum specific IgE burst upon allergen exposure, as well as, IgG2a antibody increase, suggesting potential anti-allergy effects with inclination towards Th1. These results support also the effectiveness of the aerosol administration method to deliver the drug into lungs. Surfacen® induced a favorable pharmacological effect, with a bronchodilator outcome comparable to Salbutamol, consistent with its action as a lung surfactant, and with an advantageous anti-inflammatory and anti-allergic immunomodulatory effect.
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Affiliation(s)
- Odalys Blanco
- Centro Nacional de Sanidad Agropecuaria (CENSA), San José de las Lajas, Mayabeque, Cuba
| | - Wendy Ramírez
- Centro Nacional de Biopreparados (BIOCEN), Bejucal, Mayabeque, Cuba
| | - Yuliannis Lugones
- Centro Nacional de Sanidad Agropecuaria (CENSA), San José de las Lajas, Mayabeque, Cuba
| | - Elaine Díaz
- Centro Nacional de Sanidad Agropecuaria (CENSA), San José de las Lajas, Mayabeque, Cuba
| | - Alain Morejón
- Centro Nacional de Biopreparados (BIOCEN), Bejucal, Mayabeque, Cuba
| | - Valentín S Rodríguez
- Universidad de Ciencias Médicas de Camagüey. Hospital General Docente Martín Chang Puga, Nuevitas. Camagüey, Cuba
| | - Wilma Alfonso
- Centro Nacional de Sanidad Agropecuaria (CENSA), San José de las Lajas, Mayabeque, Cuba
| | - Alexis Labrada
- Centro Nacional de Biopreparados (BIOCEN), Bejucal, Mayabeque, Cuba.
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Atanasio A, Franklin MC, Kamat V, Hernandez AR, Badithe A, Ben LH, Jones J, Bautista J, Yancopoulos GD, Olson W, Murphy AJ, Sleeman MA, Orengo JM. Targeting immunodominant Bet v 1 epitopes with monoclonal antibodies prevents the birch allergic response. J Allergy Clin Immunol 2022; 149:200-211. [PMID: 34126155 DOI: 10.1016/j.jaci.2021.05.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [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: 02/01/2021] [Revised: 04/16/2021] [Accepted: 05/14/2021] [Indexed: 01/22/2023]
Abstract
BACKGROUND Blocking the major cat allergen, Fel d 1, with mAbs was effective in preventing an acute cat allergic response. OBJECTIVES This study sought to extend the allergen-specific antibody approach and demonstrate that a combination of mAbs targeting Bet v 1, the immunodominant and most abundant allergenic protein in birch pollen, can prevent the birch allergic response. METHODS Bet v 1-specific mAbs, REGN5713, REGN5714, and REGN5715, were isolated using the VelocImmune platform. Surface plasmon resonance, x-ray crystallography, and cryo-electron microscopy determined binding kinetics and structural data. Inhibition of IgE-binding, basophil activation, and mast cell degranulation were assessed via blocking ELISA, flow cytometry, and the passive cutaneous anaphylaxis mouse model. RESULTS REGN5713, REGN5714, and REGN5715 bind with high affinity and noncompetitively to Bet v 1. A cocktail of all 3 antibodies, REGN5713/14/15, blocks IgE binding to Bet v 1 and inhibits Bet v 1- and birch pollen extract-induced basophil activation ex vivo and mast cell degranulation in vivo. Crystal structures of the complex of Bet v 1 with immunoglobulin antigen-binding fragments of REGN5713 or REGN5715 show distinct interaction sites on Bet v 1. Cryo-electron microscopy reveals a planar and roughly symmetrical complex formed by REGN5713/14/15 bound to Bet v 1. CONCLUSIONS These data confirm the immunodominance of Bet v 1 in birch allergy and demonstrate blockade of the birch allergic response with REGN5713/14/15. Structural analyses show simultaneous binding of REGN5713, REGN5714, and REGN5715 with substantial areas of Bet v 1 exposed, suggesting that targeting specific epitopes is sufficient to block the allergic response.
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Affiliation(s)
| | | | | | | | | | - Li-Hong Ben
- Regeneron Pharmaceuticals, Inc, Tarrytown, NY
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Li P, Tsang MSM, Kan LLY, Hou T, Hon SSM, Chan BCL, Chu IMT, Lam CWK, Leung PC, Wong CK. The Immuno-Modulatory Activities of Pentaherbs Formula on Ovalbumin-Induced Allergic Rhinitis Mice via the Activation of Th1 and Treg Cells and Inhibition of Th2 and Th17 Cells. Molecules 2021; 27:molecules27010239. [PMID: 35011470 PMCID: PMC8746371 DOI: 10.3390/molecules27010239] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 12/29/2021] [Accepted: 12/29/2021] [Indexed: 11/27/2022]
Abstract
Allergic rhinitis (AR) is a highly prevalent allergic disease induced by immunoglobulin (Ig) E-mediated hypersensitivity reaction at the nasal epithelium against inhaled allergens. Previous studies have demonstrated that Pentaherbs formula (PHF), a modified herbal formula comprising five herbal medicines (Flos Lonicerae, Herba Menthae, Cortex Phellodendri, Cortex Moutan and Rhizoma Atractylodis), could suppress various immune effector cells to exert anti-inflammatory and anti-allergic effects in allergic asthma and atopic dermatitis. The present study aimed to further determine the anti-inflammatory activities of PHF in an ovalbumin (OVA)-induced AR BALB/c mouse model. Nasal symptoms such as sneezing and nose rubbing were recorded and the serum total IgE and OVA-specific IgG1, as well as interleukin (IL)-4, IL-5, IL-10, IL-13, chemokines CXCL9 CXCL10, and tumor necrosis factor (TNF)-α concentrations in nasal lavage fluid (NALF) were measured during different treatments. Effects of PHF on the expression of inflammatory mediators in the sinonasal mucosa were quantified using real-time QPCR. PHF was found to suppress allergic symptoms, infiltration of inflammatory cells, and hyperplasia of goblet cells in the nasal epithelium of the OVA-induced AR mice. PHF could reduce OVA-specific IgG1 level in serum, and TNF-α and IL-10 in nasal lavage fluid (NALF), significantly up-regulate the splenic regulatory T (Treg) cell level, increase the Type 1 helper T cell (Th1)/Type 2 helper T cell (Th2) ratio, and reduce the Th17 cells (all p < 0.05). PHF could also alleviate in situ inflammation in sinonasal mucosa of OVA-induced AR mice. In conclusion, oral treatment of PHF showed immuno-modulatory activities in the OVA-induced AR mice by regulating the splenic T cell population to suppress the nasal allergy symptoms and modulating inflammatory mediators, implicating that PHF could be a therapeutic strategy for allergic rhinitis.
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Affiliation(s)
- Peiting Li
- State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, Institute of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China; (P.L.); (M.S.-M.T.); (L.L.-Y.K.); (S.S.-M.H.); (B.C.-L.C.); (P.-C.L.)
| | - Miranda Sin-Man Tsang
- State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, Institute of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China; (P.L.); (M.S.-M.T.); (L.L.-Y.K.); (S.S.-M.H.); (B.C.-L.C.); (P.-C.L.)
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China; (T.H.); (I.M.-T.C.)
| | - Lea Ling-Yu Kan
- State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, Institute of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China; (P.L.); (M.S.-M.T.); (L.L.-Y.K.); (S.S.-M.H.); (B.C.-L.C.); (P.-C.L.)
| | - Tianheng Hou
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China; (T.H.); (I.M.-T.C.)
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Sharon Sze-Man Hon
- State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, Institute of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China; (P.L.); (M.S.-M.T.); (L.L.-Y.K.); (S.S.-M.H.); (B.C.-L.C.); (P.-C.L.)
| | - Ben Chung-Lap Chan
- State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, Institute of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China; (P.L.); (M.S.-M.T.); (L.L.-Y.K.); (S.S.-M.H.); (B.C.-L.C.); (P.-C.L.)
| | - Ida Miu-Ting Chu
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China; (T.H.); (I.M.-T.C.)
| | - Christopher Wai-Kei Lam
- Faculty of Medicine and State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China;
| | - Ping-Chung Leung
- State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, Institute of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China; (P.L.); (M.S.-M.T.); (L.L.-Y.K.); (S.S.-M.H.); (B.C.-L.C.); (P.-C.L.)
| | - Chun-Kwok Wong
- State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, Institute of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China; (P.L.); (M.S.-M.T.); (L.L.-Y.K.); (S.S.-M.H.); (B.C.-L.C.); (P.-C.L.)
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China; (T.H.); (I.M.-T.C.)
- Li Dak Sum Yip Yio Chin R & D Centre for Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China
- Correspondence: ; Tel.: +852-3505-2964; Fax: +852-2636-5090
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Aparicio-Soto M, Curato C, Riedel F, Thierse HJ, Luch A, Siewert K. In Vitro Monitoring of Human T Cell Responses to Skin Sensitizing Chemicals-A Systematic Review. Cells 2021; 11:cells11010083. [PMID: 35011644 PMCID: PMC8750770 DOI: 10.3390/cells11010083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/21/2021] [Accepted: 12/23/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Chemical allergies are T cell-mediated diseases that often manifest in the skin as allergic contact dermatitis (ACD). To prevent ACD on a public health scale and avoid elicitation reactions at the individual patient level, predictive and diagnostic tests, respectively, are indispensable. Currently, there is no validated in vitro T cell assay available. The main bottlenecks concern the inefficient generation of T cell epitopes and the detection of rare antigen-specific T cells. Methods: Here, we systematically review original experimental research papers describing T cell activation to chemical skin sensitizers. We focus our search on studies published in the PubMed and Scopus databases on non-metallic allergens in the last 20 years. Results: We identified 37 papers, among them 32 (86%) describing antigen-specific human T cell activation to 31 different chemical allergens. The remaining studies measured the general effects of chemical allergens on T cell function (five studies, 14%). Most antigen-specific studies used peripheral blood mononuclear cells (PBMC) as antigen-presenting cells (APC, 75%) and interrogated the blood T cell pool (91%). Depending on the individual chemical properties, T cell epitopes were generated either by direct administration into the culture medium (72%), separate modification of autologous APC (29%) or by use of hapten-modified model proteins (13%). Read-outs were mainly based on proliferation (91%), often combined with cytokine secretion (53%). The analysis of T cell clones offers additional opportunities to elucidate the mechanisms of epitope formation and cross-reactivity (13%). The best researched allergen was p-phenylenediamine (PPD, 12 studies, 38%). For this and some other allergens, stronger immune responses were observed in some allergic patients (15/31 chemicals, 48%), illustrating the in vivo relevance of the identified T cells while detection limits remain challenging in many cases. Interpretation: Our results illustrate current hardships and possible solutions to monitoring T cell responses to individual chemical skin sensitizers. The provided data can guide the further development of T cell assays to unfold their full predictive and diagnostic potential, including cross-reactivity assessments.
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Affiliation(s)
- Marina Aparicio-Soto
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany; (M.A.-S.); (C.C.); (F.R.); (H.-J.T.); (A.L.)
| | - Caterina Curato
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany; (M.A.-S.); (C.C.); (F.R.); (H.-J.T.); (A.L.)
| | - Franziska Riedel
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany; (M.A.-S.); (C.C.); (F.R.); (H.-J.T.); (A.L.)
- Institute of Pharmacy, Freie Universität Berlin, 14195 Berlin, Germany
| | - Hermann-Josef Thierse
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany; (M.A.-S.); (C.C.); (F.R.); (H.-J.T.); (A.L.)
| | - Andreas Luch
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany; (M.A.-S.); (C.C.); (F.R.); (H.-J.T.); (A.L.)
- Institute of Pharmacy, Freie Universität Berlin, 14195 Berlin, Germany
| | - Katherina Siewert
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany; (M.A.-S.); (C.C.); (F.R.); (H.-J.T.); (A.L.)
- Correspondence: ; Tel.: +49-(0)30-18412-57001
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Zghaebi M, Byazrova M, Flicker S, Villazala-Merino S, Campion NJ, Stanek V, Tu A, Breiteneder H, Filatov A, Khaitov M, Niederberger-Leppin V, Eckl-Dorna J, Valenta R. Tracing Human IgE B Cell Antigen Receptor-Bearing Cells With a Monoclonal Anti-Human IgE Antibody That Specifically Recognizes Non-Receptor-Bound IgE. Front Immunol 2021; 12:803236. [PMID: 34987522 PMCID: PMC8721004 DOI: 10.3389/fimmu.2021.803236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 11/08/2021] [Indexed: 11/13/2022] Open
Abstract
Up to 30% of the population suffers from immunoglobulin E (IgE)-mediated allergies. Despite current stepwise gating approaches, the unambiguous identification of human IgE-producing cells by flow cytometry and immunohistology remains challenging. This is mainly due to the scarcity of these cells and the fact that IgE is not only expressed in a membrane-bound form on the surface of IgE-producing cells in form of the B cell antigen receptor (BCR), but is more frequently found on various cell types bound to the low and high affinity receptors, CD23 and FcϵRI, respectively. Here we sought to develop a sequential gating strategy for unambiguous detection of cells bearing the IgE BCR on their surface. To that aim we first tested the monoclonal anti-IgE antibody omalizumab for its ability to discriminate between IgE BCR and receptor-bound IgE using cells producing IgE or bearing IgE bound to CD23 as well as basophils exhibiting FcϵRI receptor-bound IgE. Using flow cytometry, we demonstrated that omalizumab recognized IgE producing cells with a high sensitivity of up to 1 IgE+ cell in 1000 human peripheral blood mononuclear cells (PBMCs). These results were confirmed by confocal microscopy both in cell suspensions as well as in nasal polyp tissue sections. Finally, we established a consecutive gating strategy allowing the clear identification of class-switched, allergen-specific IgE+ memory B cells and plasmablasts/plasma cells in human PBMCs. Birch pollen specific IgE+ memory B cells represented on average 0.734% of total CD19+ B cells in allergic patients after allergen exposure. Thus, we developed a new protocol for exclusive staining of non-receptor bound allergen-specific IgE+ B cell subsets in human samples.
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MESH Headings
- Allergens/immunology
- Anti-Allergic Agents/therapeutic use
- Antibodies, Monoclonal/metabolism
- Antigens, CD19/metabolism
- Antigens, Plant/immunology
- B-Lymphocyte Subsets/immunology
- Betula/immunology
- Cell Separation
- Epitopes
- Flow Cytometry
- Humans
- Immunoglobulin Class Switching
- Immunoglobulin E/metabolism
- Immunologic Memory
- Omalizumab/therapeutic use
- Pollen/immunology
- Protein Binding
- Receptors, Antigen, B-Cell/metabolism
- Receptors, IgE/metabolism
- Rhinitis, Allergic, Seasonal/drug therapy
- Rhinitis, Allergic, Seasonal/immunology
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Affiliation(s)
- Mohammed Zghaebi
- Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
| | - Maria Byazrova
- National Research Centre (NRC) Institute of Immunology, Federal Medical-Biological Agency (FMBA) of Russia, Moscow, Russia
- Department of Immunology, Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Sabine Flicker
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | | | - Nicholas J. Campion
- Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
| | - Victoria Stanek
- Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
| | - Aldine Tu
- Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
| | - Heimo Breiteneder
- Division of Medical Biotechnology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Alexander Filatov
- National Research Centre (NRC) Institute of Immunology, Federal Medical-Biological Agency (FMBA) of Russia, Moscow, Russia
- Department of Immunology, Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Musa Khaitov
- National Research Centre (NRC) Institute of Immunology, Federal Medical-Biological Agency (FMBA) of Russia, Moscow, Russia
- Immunology Department, Pirogov Russian National Research Medical University, Moscow, Russia
| | | | - Julia Eckl-Dorna
- Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
- *Correspondence: Julia Eckl-Dorna,
| | - Rudolf Valenta
- National Research Centre (NRC) Institute of Immunology, Federal Medical-Biological Agency (FMBA) of Russia, Moscow, Russia
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Department of Clinical Immunology and Allergy, Sechenov First Moscow State Medical University, Moscow, Russia
- Karl Landsteiner University of Health Sciences, Krems, Austria
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Massey O, Suphioglu C. Recent Advances in the Inhibition of the IL-4 Cytokine Pathway for the Treatment of Allergen-Induced Asthma. Int J Mol Sci 2021; 22:ijms222413655. [PMID: 34948449 PMCID: PMC8706302 DOI: 10.3390/ijms222413655] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/10/2021] [Accepted: 12/15/2021] [Indexed: 12/23/2022] Open
Abstract
The IL-4 and IL-13 cytokine pathways play integral roles in stimulating IgE inflammation, with the IL-4 cytokine being a major cytokine in the etiology of thunderstorm asthma, atopic dermatitis, and allergic rhinitis. The increasing prevalence of thunderstorm asthma in the younger population and the lessening efficacy of corticosteroids and other anti-inflammatories has created a need for more effective pharmaceuticals. This review summarizes the IL-4 and IL-13 pathways while highlighting and discussing the current pathway inhibitors aimed at treating thunderstorm asthma and atopic dermatitis, as well as the potential efficacy of peptide therapeutics in this field.
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Affiliation(s)
- Oliver Massey
- NeuroAllergy Research Laboratory, School of Life and Environmental Sciences, Deakin University, Geelong, VIC 3216, Australia;
- Institute for Mental and Physical Health and Clinical Translation (IMPACT), Deakin University, Geelong, VIC 3216, Australia
| | - Cenk Suphioglu
- NeuroAllergy Research Laboratory, School of Life and Environmental Sciences, Deakin University, Geelong, VIC 3216, Australia;
- Institute for Mental and Physical Health and Clinical Translation (IMPACT), Deakin University, Geelong, VIC 3216, Australia
- Correspondence:
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40
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Letrán A, García I, Espinazo-Romeu M, Moreno-Aguilar C, Moreno F. Cut-off value of D. pteronyssinus specific IgE in double negative patients Der p 1 and Der p 2 and its clinical repercussion. Sci Rep 2021; 11:23585. [PMID: 34880341 PMCID: PMC8655041 DOI: 10.1038/s41598-021-03005-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 11/10/2021] [Indexed: 11/09/2022] Open
Abstract
Accessibility to more precise diagnostic techniques such as component resolved diagnostics (CRD), provides us with an important advance in diagnostic aspects as well as treatment. The subject of this study aims to better understand the profiles of sensitization to Der p 1, Der p 2 and Der p 23 and to know to what extent their use could help us in optimizing the decision-making for their treatment with Specific Immunotherapy. Cross-sectional study of subjects older than 5 years, diagnosed with allergy to HDM using skin prick test and sIgE, with symptoms of rhinitis and/or asthma. Total and specific IgE was determined to D. pteronyssinus, nDer p 1, rDer p 2 and rDer p 23 using ImmunoCAP. 240 patients were recruited (97.1% rhinitis and 46.25% rhinitis and asthma). Four different phenotypes were observed: positive or negative for sIgE nDer p 1 and/or IgE rDer p 2. 17% of these patients sIgE were double negative for Der p 1 and Der p 2 (increasing with age and with significantly lower sIgE levels than the rest of the groups). Using ROC curves, value less than 2.18 KUA/L for D. pteronyssinus sIgE gave us a sensitivity and specificity of 0.882 and 0.985, respectively, to double negative IgE nDer p 1 and IgE rDer p 2 group. Despite positive SPT and sIgE to D. pteronyssinus, 17% of the studied population is IgE nDer p 1 and IgE rDer p 2 double negative, with a cut-off value of 2.18 KU/L, which is very relevant for taking of decisions in prescription of AIT. The double positive population sIgE nDer p 1 and IgE rDer p 2 is associated with asthma compared to the other groups and this does not seem to be influenced by IgE rDer p 23.
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Affiliation(s)
- Antonio Letrán
- Servicio de Alergología e Inmunología, CM ASISA Lobatón, Cádiz, Spain
| | | | - Marisa Espinazo-Romeu
- GC01 Laboratorio de Inmunología y Alergia, Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/Reina Sofia University Hospital/University of Cordoba, Avenida Menéndez Pidal, S/N, 14004, Córdoba, Spain.
- National Network ARADyAL, Health Institute Carlos III, Madrid, Spain.
| | - Carmen Moreno-Aguilar
- GC01 Laboratorio de Inmunología y Alergia, Maimonides Biomedical Research Institute of Cordoba (IMIBIC)/Reina Sofia University Hospital/University of Cordoba, Avenida Menéndez Pidal, S/N, 14004, Córdoba, Spain
- National Network ARADyAL, Health Institute Carlos III, Madrid, Spain
- Department of Immunology and Allergy, Reina Sofia University Hospital, Cordoba, Spain
| | - Francisco Moreno
- Servicio de Alergología e Inmunología, CM ASISA Lobatón, Cádiz, Spain
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Baseggio Conrado A, Patel N, Turner PJ. Global patterns in anaphylaxis due to specific foods: A systematic review. J Allergy Clin Immunol 2021; 148:1515-1525.e3. [PMID: 33940057 PMCID: PMC8674817 DOI: 10.1016/j.jaci.2021.03.048] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [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: 12/28/2020] [Revised: 02/12/2021] [Accepted: 03/19/2021] [Indexed: 12/04/2022]
Abstract
BACKGROUND There are increasing global data relating to prevalence of food allergy and food-induced anaphylaxis; however, this is often based on surrogate measures of sensitization rather than objective symptoms at food challenge. In terms of protecting food-allergic consumers from reactions, to our knowledge, there has been no global survey assessing geographic differences in the proportion of anaphylaxis triggered by specific foods. OBJECTIVE We sought to identify common triggers for food-induced anaphylaxis and how these vary from country to country. METHODS Systematic review of relevant reports published between January 2010 and November 2020. Results were reported following PRISMA guidelines. Publications were screened and data extracted by 2 independent reviewers, and the risk of bias was assessed. RESULTS Sixty-five studies (encompassing 41 countries and all 6 regions as defined by the Food and Agriculture Organization of the United Nations) were included. Significant regional variations in the most common triggers of food anaphylaxis were seen; however, in general, there was good agreement between local legislative requirements for allergen disclosure and the most common allergens for each region or nation. CONCLUSIONS Local legislation for allergen disclosure generally reflects those allergens commonly responsible for food anaphylaxis. Cow's milk and crustaceans appear to cause a higher proportion of anaphylaxis compared to peanut in some regions.
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Affiliation(s)
| | - Nandinee Patel
- National Heart & Lung Institute, Imperial College London, London, United Kingdom
| | - Paul J Turner
- National Heart & Lung Institute, Imperial College London, London, United Kingdom; Department of Paediatrics and Child Health, University of Sydney, Sydney, Australia.
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Abstract
PURPOSE OF REVIEW Molecular forms of allergen-specific immunotherapy (AIT) are continuously emerging to improve the efficacy of the treatment, to shorten the duration of protocols and to prevent any side effects. The present review covers the recent progress in the development of AIT based on nucleic acid encoding allergens or CpG oligodeoxynucleotides (CpG-ODN). RECENT FINDINGS Therapeutic vaccinations with plasmid deoxyribonucleic acid (DNA) encoding major shrimp Met e 1 or insect For t 2 allergen were effective for the treatment of food or insect bite allergy in respective animal models. DNA expressing hypoallergenic shrimp tropomyosin activated Foxp3+ T regulatory (Treg) cells whereas DNA encoding For t 2 down-regulated the expression of pruritus-inducing IL-31. Co-administrations of major cat allergen Fel d 1 with high doses of CpG-ODN reduced Th2 airway inflammation through tolerance induction mediated by GATA3+ Foxp3hi Treg cells as well as early anti-inflammatory TNF/TNFR2 signaling cascade. Non-canonical CpG-ODN derived from Cryptococcus neoformans as well as methylated CpG sites present in the genomic DNA from Bifidobacterium infantis mediated Th1 or Treg cell differentiation respectively. SUMMARY Recent studies on plasmid DNA encoding allergens evidenced their therapeutic potential for the treatment of food allergy and atopic dermatitis. Unmethylated or methylated CpG-ODNs were shown to activate dose-dependent Treg/Th1 responses. Large clinical trials need to be conducted to confirm these promising preclinical data. Moreover, tremendous success of messenger ribonucleic acid (mRNA) vaccines against severe acute respiratory syndrome coronavirus 2 must encourage as well the re-exploration of mRNA vaccine platform for innovative AIT.
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MESH Headings
- Allergens/administration & dosage
- Allergens/genetics
- Allergens/immunology
- Animals
- Clinical Trials as Topic
- Desensitization, Immunologic/methods
- Desensitization, Immunologic/trends
- Disease Models, Animal
- Drug Evaluation, Preclinical
- Humans
- Hypersensitivity, Immediate/immunology
- Hypersensitivity, Immediate/therapy
- Oligodeoxyribonucleotides/administration & dosage
- Oligodeoxyribonucleotides/genetics
- Oligodeoxyribonucleotides/immunology
- Plasmids/administration & dosage
- Plasmids/genetics
- Plasmids/immunology
- Treatment Outcome
- Vaccines, DNA/administration & dosage
- Vaccines, DNA/genetics
- Vaccines, DNA/immunology
- Vaccines, Synthetic/administration & dosage
- Vaccines, Synthetic/genetics
- Vaccines, Synthetic/immunology
- mRNA Vaccines
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Affiliation(s)
- Alain Jacquet
- Center of Excellence in Vaccine Research and Development, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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Ishida W, Kishimoto T, Takaiwa F, Fukuda K. Prophylactic and Therapeutic Effects of Oral Immunotherapy on Birch Pollen-Induced Allergic Conjunctivitis in Mice with a Rice-Based Edible Vaccine Expressing a Hypoallergenic Birch Pollen Allergen. Cells 2021; 10:cells10123361. [PMID: 34943868 PMCID: PMC8699710 DOI: 10.3390/cells10123361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/26/2021] [Accepted: 11/28/2021] [Indexed: 11/16/2022] Open
Abstract
We investigated the prophylactic and therapeutic effects of the oral administration of transgenic rice seeds expressing a hypoallergenic Bet v 1 derivative of allergic birch pollen conjunctivitis in mice. Transgenic rice seed depositing a chimeric molecule called TPC7 (tree pollen chimera 7) created by DNA shuffling of Bet v 1 family sequences from birch, alder and hazel in protein bodies of endosperm was generated. BALB/c mice were sensitized to birch pollen in alum and challenged with pollen in eyedrops. They were fed TPC7 transgenic or non-transgenic (control) rice seeds for 14 d before sensitization (prophylactic protocol) or 17 d after sensitization (therapeutic protocol). The clinical score and number of conjunctival eosinophils were significantly lower in TPC7-fed mice than in the control mice based on both the prophylactic and therapeutic protocols. Serum concentration of allergen-specific IgE did not differ between TPC7-fed and control groups in either protocol. Prophylactic administration of TPC7 downregulated the production of IL-4 and IFN-γ, whereas therapeutic administration of TPC7 upregulated the production of IFN-γ by allergen-stimulated splenocytes. Prophylactic or therapeutic oral administration of transgenic rice expressing TPC7 suppressed birch pollen-induced allergic conjunctivitis in mice. Feeding transgenic rice is a potentially effective approach as an allergen-specific immunotherapy for allergic conjunctivitis.
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Affiliation(s)
- Waka Ishida
- Department of Ophthalmology and Visual Science, Kochi Medical School, Kochi University, Kochi 783-8505, Japan; (W.I.); (T.K.)
| | - Tatsuma Kishimoto
- Department of Ophthalmology and Visual Science, Kochi Medical School, Kochi University, Kochi 783-8505, Japan; (W.I.); (T.K.)
| | - Fumio Takaiwa
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Ibaraki 305-8602, Japan;
| | - Ken Fukuda
- Department of Ophthalmology and Visual Science, Kochi Medical School, Kochi University, Kochi 783-8505, Japan; (W.I.); (T.K.)
- Correspondence: ; Tel.: +81-88880-2391
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Kutateladze T, Bitskinashvili K, Sapojnikova N, Kartvelishvili T, Asatiani N, Vishnepolsky B, Datukishvili N. Development of Multiplex PCR Coupled DNA Chip Technology for Assessment of Endogenous and Exogenous Allergens in GM Soybean. Biosensors (Basel) 2021; 11:481. [PMID: 34940238 PMCID: PMC8699511 DOI: 10.3390/bios11120481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/18/2021] [Accepted: 11/23/2021] [Indexed: 12/26/2022]
Abstract
Allergenicity assessment of transgenic plants and foods is important for food safety, labeling regulations, and health protection. The aim of this study was to develop an effective multi-allergen diagnostic approach for transgenic soybean assessment. For this purpose, multiplex polymerase chain reaction (PCR) coupled with DNA chip technology was employed. The study was focused on the herbicide-resistant Roundup Ready soya (RRS) using a set of certified reference materials consisting of 0, 0.1%, 0.5%, and 10% RRS. Technically, the procedure included design of PCR primers and probes; genomic DNA extraction; development of uniplex and multiplex PCR systems; DNA analysis by agarose gel electrophoresis; microarray development, hybridization, and scanning. The use of the asymmetric multiplex PCR method is shown to be very efficient for DNA hybridization with biochip probes. We demonstrate that newly developed fourplex PCR methods coupled with DNA-biochips enable simultaneous identification of three major endogenous allergens, namely, Gly m Bd 28K, Gly m Bd 30K, and lectin, as well as exogenous 5-enolppyruvyl shikimate-phosphate synthase (epsps) expressed in herbicide-resistant roundup ready GMOs. The approach developed in this study can be used for accurate, cheap, and fast testing of food allergens.
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Affiliation(s)
- Tamara Kutateladze
- Ivane Beritashvili Center of Experimental Biomedicine, 14 Gotua str., Tbilisi 0160, Georgia; (T.K.); (K.B.); (B.V.)
| | - Kakha Bitskinashvili
- Ivane Beritashvili Center of Experimental Biomedicine, 14 Gotua str., Tbilisi 0160, Georgia; (T.K.); (K.B.); (B.V.)
- School of Natural Sciences and Medicine, Ilia State University, 3/5 Kakutsa Cholokashvili Ave, Tbilisi 0162, Georgia
| | - Nelly Sapojnikova
- Andronikashvili Institute of Physics, I. Javakhishvili Tbilisi State University, 6 Tamarashvili Str., Tbilisi 0162, Georgia; (N.S.); (T.K.); (N.A.)
| | - Tamar Kartvelishvili
- Andronikashvili Institute of Physics, I. Javakhishvili Tbilisi State University, 6 Tamarashvili Str., Tbilisi 0162, Georgia; (N.S.); (T.K.); (N.A.)
| | - Nino Asatiani
- Andronikashvili Institute of Physics, I. Javakhishvili Tbilisi State University, 6 Tamarashvili Str., Tbilisi 0162, Georgia; (N.S.); (T.K.); (N.A.)
| | - Boris Vishnepolsky
- Ivane Beritashvili Center of Experimental Biomedicine, 14 Gotua str., Tbilisi 0160, Georgia; (T.K.); (K.B.); (B.V.)
| | - Nelly Datukishvili
- Ivane Beritashvili Center of Experimental Biomedicine, 14 Gotua str., Tbilisi 0160, Georgia; (T.K.); (K.B.); (B.V.)
- School of Natural Sciences and Medicine, Ilia State University, 3/5 Kakutsa Cholokashvili Ave, Tbilisi 0162, Georgia
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Lee JK, Seok JK, Cho I, Yang G, Kim KB, Kwack SJ, Kang HC, Cho YY, Lee HS, Lee JY. Topical application of celastrol alleviates atopic dermatitis symptoms mediated through the regulation of thymic stromal lymphopoietin and group 2 innate lymphoid cells. J Toxicol Environ Health A 2021; 84:922-931. [PMID: 34304725 DOI: 10.1080/15287394.2021.1955785] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Atopic dermatitis is a chronic inflammatory skin disease, of which incidence is closely related to exposure to environmental pollutants and allergens. Thymic stromal lymphopoietin (TSLP) plays an important role in the early stages of atopic dermatitis development by inducing Th2 immune responses. In addition, TSLP regulates activation of group 2 innate lymphoid cells (ILC2), promoting the pathogenesis of atopic dermatitis. The aim of this study was to investigate whether celastrol alleviated atopic dermatitis symptoms by regulating TSLP expression and ILC2 stimulation. Celastrol suppressed TSLP production in mouse keratinocyte cells by inhibiting NF-ĸB activation. Topical application of celastrol significantly improved atopic dermatitis symptoms induced by house dust mite (HDM) in NC/Nga mice as determined by dermatitis score and histological assessment. Celastrol decreased the levels of TSLP in atopic dermatitis skin lesions of HDM-stimulated NC/Nga mice. Celastrol reduced levels of Th2 cytokines including IL-4, IL-5, and IL-13 in atopic dermatitis skin lesions of NC/Nga mice. Further, celastrol significantly reduced ILC2 population in atopic dermatitis skin lesions of NC/Nga mice. These results indicate that topical application of celastrol improved atopic dermatitis symptoms by lowering TSLP levels and concomitant immune responses. Data demonstrated that reduced TSLP levels and associated lower number of ILC2 cells alleviate atopic dermatitis symptoms induced by house dust mite.
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Affiliation(s)
- Jae Kwon Lee
- College of Pharmacy, the Catholic University of Korea, Bucheon, Republic of Korea
| | - Jin Kyung Seok
- College of Pharmacy, the Catholic University of Korea, Bucheon, Republic of Korea
| | - Ilyoung Cho
- College of Pharmacy, the Catholic University of Korea, Bucheon, Republic of Korea
| | - Gabsik Yang
- Department of Pharmacology, College of Korea Medicine, Woosuk University, Jeonju-si, Republic of Korea
| | - Kyu-Bong Kim
- College of Pharmacy, Dankook University, Cheonan, Republic of Korea
| | - Seung Jun Kwack
- Department of Bio Health Science, Changwon National University, Changwon, Republic of Korea
| | - Han Chang Kang
- College of Pharmacy, the Catholic University of Korea, Bucheon, Republic of Korea
| | - Yong-Yeon Cho
- College of Pharmacy, the Catholic University of Korea, Bucheon, Republic of Korea
| | - Hye Suk Lee
- College of Pharmacy, the Catholic University of Korea, Bucheon, Republic of Korea
| | - Joo Young Lee
- College of Pharmacy, the Catholic University of Korea, Bucheon, Republic of Korea
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Hu X, Shen Y, Zhao Y, Wang J, Zhang X, Tu W, Kaufman W, Feng J, Gao P. Epithelial Aryl Hydrocarbon Receptor Protects From Mucus Production by Inhibiting ROS-Triggered NLRP3 Inflammasome in Asthma. Front Immunol 2021; 12:767508. [PMID: 34868022 PMCID: PMC8634667 DOI: 10.3389/fimmu.2021.767508] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/28/2021] [Indexed: 02/05/2023] Open
Abstract
Background Despite long-standing recognition in the significance of mucus overproduction in asthma, its etiology remains poorly understood. Muc5ac is a secretory mucin that has been associated with reduced pulmonary function and asthma exacerbations. Objectives We sought to investigate the immunological pathway that controls Muc5ac expression and allergic airway inflammation in asthma. Methods Cockroach allergen-induced Muc5ac expression and aryl hydrocarbon receptor (AhR) signaling activation was examined in the human bronchial epithelial cells (HBECs) and mouse model of asthma. AhR regulation of Muc5ac expression, mitochondrial ROS (Mito-ROS) generation, and NLRP3 inflammasome was determined by AhR knockdown, the antagonist CH223191, and AhR-/- mice. The role of NLRP3 inflammasome in Muc5ac expression and airway inflammation was also investigated. Results Cockroach allergen induced Muc5ac overexpression in HBECs and airways of asthma mouse model. Increased expression of AhR and its downstream genes CYP1A1 and CYP1B1 was also observed. Mice with AhR deletion showed increased allergic airway inflammation and MUC5AC expression. Moreover, cockroach allergen induced epithelial NLRP3 inflammasome activation (e.g., NLRP3, Caspase-1, and IL-1β), which was enhanced by AhR knockdown or the antagonist CH223191. Furthermore, AhR deletion in HBECs led to enhanced ROS generation, particularly Mito-ROS, and inhibition of ROS or Mito-ROS subsequently suppressed the inflammasome activation. Importantly, inhibition of the inflammasome with MCC950, a NLRP3-specifc inhibitor, attenuated allergic airway inflammation and Muc5ac expression. IL-1β generated by the activated inflammasomes mediated cockroach allergen-induced Muc5ac expression in HBECs. Conclusions These results reveal a previously unidentified functional axis of AhR-ROS-NLRP3 inflammasome in regulating Muc5ac expression and airway inflammation.
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Affiliation(s)
- Xinyue Hu
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Yingchun Shen
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Yilin Zhao
- Department of Respiratory Medicine, Xijing Hospital, The Fourth Military Medical University, Xi’an, China
| | - Ji Wang
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Pulmonary Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, Sichuan University, Chengdu, China
| | - Xin Zhang
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Wei Tu
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Department of Respirology & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - William Kaufman
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Juntao Feng
- Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Peisong Gao
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
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Soares JRA, Pereira E Silva A, de Souza Oliveira AL, Guimarães IM, das Neves Faccini CRJ, de Aquino Mattos EB, Rodrigues SKPM, Marmello BO, Teixeira GAPB. Allergen extraction: Factors influencing immunogenicity and sensitivity of immunoassays. J Immunol Methods 2021; 498:113125. [PMID: 34450115 DOI: 10.1016/j.jim.2021.113125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 06/09/2021] [Revised: 08/17/2021] [Accepted: 08/17/2021] [Indexed: 10/20/2022]
Abstract
Food allergy prevalence is increasing worldwide, therefore there is a high demand for reliable tests to correctly diagnose this disease. Knowledge of proteins allergenicity and how they react both in the body and in diagnostic tests is necessary to adequately assess the potential immunogenicity of both natural foods and those produced through biotechnological processes. Thus, our aim was to analyze the factors that influence the protein extraction of foods in terms of, immunogenicity and immunoassays sensitivity. Peanut proteins were extracted using four distinct extraction buffers with different pH values (physiological saline, tris buffer, borate buffer with and without β-mercaptoethanol), the protein concentration was determined by the Lowry method and polyacrylamide electrophoresis (SDS-PAGE) was used to compare the protein profile of each extract. The immunogenicity of each extract was verified by sensitizing two mouse strains (Balb/c and C57Bl/6) with a solution containing 100 μg of the extracted proteins and was determined by ELISA. Results show that extraction with the distinct buffers resulted in protein solutions with different yields and profiles. The immunogenicity of the different extracts also demonstrated distinct patterns that varied depending on the extraction methods, mouse strain and in vitro test. Immunoreactivity varied in accordance with the protein extract used to coat the microtitration plates. In conclusion, the protein profile in the extracts is critically influenced by the salt composition and pH of the extraction buffers, this in turn influences both in vivo immunogenicity and in vitro immunoreactivity.
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Affiliation(s)
- João Ricardo Almeida Soares
- Gastrointestinal Immunology Group, Department of Immunobiology, Institute of Biology, Federal Fluminense University, Niterói, Rio de Janeiro 24020-150, Brazil; Graduate Program in Pathology, Medicine School, Antônio Pedro Hospital, Federal Fluminense University, Niterói, Rio de Janeiro 24033-900, Brazil
| | - Airton Pereira E Silva
- Gastrointestinal Immunology Group, Department of Immunobiology, Institute of Biology, Federal Fluminense University, Niterói, Rio de Janeiro 24020-150, Brazil; Graduate Program in Pathology, Medicine School, Antônio Pedro Hospital, Federal Fluminense University, Niterói, Rio de Janeiro 24033-900, Brazil
| | - Ana Luísa de Souza Oliveira
- Gastrointestinal Immunology Group, Department of Immunobiology, Institute of Biology, Federal Fluminense University, Niterói, Rio de Janeiro 24020-150, Brazil; Graduate Program in Pathology, Medicine School, Antônio Pedro Hospital, Federal Fluminense University, Niterói, Rio de Janeiro 24033-900, Brazil
| | - Isabelle Mazza Guimarães
- Gastrointestinal Immunology Group, Department of Immunobiology, Institute of Biology, Federal Fluminense University, Niterói, Rio de Janeiro 24020-150, Brazil; Graduate Program in Science and Biotechnology, Federal Fluminense University, Niterói, Rio de Janeiro 24020-141, Brazil
| | - Claudia Regina Josetti das Neves Faccini
- Gastrointestinal Immunology Group, Department of Immunobiology, Institute of Biology, Federal Fluminense University, Niterói, Rio de Janeiro 24020-150, Brazil; Graduate Program in Pathology, Medicine School, Antônio Pedro Hospital, Federal Fluminense University, Niterói, Rio de Janeiro 24033-900, Brazil
| | - Erika Bertozzi de Aquino Mattos
- Gastrointestinal Immunology Group, Department of Immunobiology, Institute of Biology, Federal Fluminense University, Niterói, Rio de Janeiro 24020-150, Brazil; Graduate Program in Pathology, Medicine School, Antônio Pedro Hospital, Federal Fluminense University, Niterói, Rio de Janeiro 24033-900, Brazil
| | - Sónia Kristy Pinto Melo Rodrigues
- Gastrointestinal Immunology Group, Department of Immunobiology, Institute of Biology, Federal Fluminense University, Niterói, Rio de Janeiro 24020-150, Brazil; Graduate Program in Pathology, Medicine School, Antônio Pedro Hospital, Federal Fluminense University, Niterói, Rio de Janeiro 24033-900, Brazil
| | - Bárbara Oliveira Marmello
- Gastrointestinal Immunology Group, Department of Immunobiology, Institute of Biology, Federal Fluminense University, Niterói, Rio de Janeiro 24020-150, Brazil; Graduate Program in Science and Biotechnology, Federal Fluminense University, Niterói, Rio de Janeiro 24020-141, Brazil
| | - Gerlinde Agate Platais Brasil Teixeira
- Gastrointestinal Immunology Group, Department of Immunobiology, Institute of Biology, Federal Fluminense University, Niterói, Rio de Janeiro 24020-150, Brazil; Graduate Program in Science and Biotechnology, Federal Fluminense University, Niterói, Rio de Janeiro 24020-141, Brazil; Graduate Program in Pathology, Medicine School, Antônio Pedro Hospital, Federal Fluminense University, Niterói, Rio de Janeiro 24033-900, Brazil.
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Felton JM, Bouffi C, Schwartz JT, Schollaert KL, Malik A, Vallabh S, Wronowski B, Magier AZ, Merlin L, Barski A, Weirauch MT, Fulkerson PC, Rothenberg ME. Aiolos regulates eosinophil migration into tissues. Mucosal Immunol 2021; 14:1271-1281. [PMID: 34341502 PMCID: PMC8542574 DOI: 10.1038/s41385-021-00416-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 05/12/2021] [Accepted: 05/17/2021] [Indexed: 02/04/2023]
Abstract
Expression of Ikaros family transcription factor IKZF3 (Aiolos) increases during murine eosinophil lineage commitment and maturation. Herein, we investigated Aiolos expression and function in mature human and murine eosinophils. Murine eosinophils deficient in Aiolos demonstrated gene expression changes in pathways associated with granulocyte-mediated immunity, chemotaxis, degranulation, ERK/MAPK signaling, and extracellular matrix organization; these genes had ATAC peaks within 1 kB of the TSS that were enriched for Aiolos-binding motifs. Global Aiolos deficiency reduced eosinophil frequency within peripheral tissues during homeostasis; a chimeric mouse model demonstrated dependence on intrinsic Aiolos expression by eosinophils. Aiolos deficiency reduced eosinophil CCR3 surface expression, intracellular ERK1/2 signaling, and CCL11-induced actin polymerization, emphasizing an impaired functional response. Aiolos-deficient eosinophils had reduced tissue accumulation in chemokine-, antigen-, and IL-13-driven inflammatory experimental models, all of which at least partially depend on CCR3 signaling. Human Aiolos expression was associated with active chromatin marks enriched for IKZF3, PU.1, and GATA-1-binding motifs within eosinophil-specific histone ChIP-seq peaks. Furthermore, treating the EOL-1 human eosinophilic cell line with lenalidomide yielded a dose-dependent decrease in Aiolos. These collective data indicate that eosinophil homing during homeostatic and inflammatory allergic states is Aiolos-dependent, identifying Aiolos as a potential therapeutic target for eosinophilic disease.
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Affiliation(s)
- Jennifer M Felton
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Carine Bouffi
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Justin T Schwartz
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Kaila L Schollaert
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Astha Malik
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Sushmitha Vallabh
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Benjamin Wronowski
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Adam Z Magier
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Li Merlin
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Artem Barski
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Human Genetics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Matthew T Weirauch
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Center for Autoimmune Genomics and Etiology, Division of Biomedical Informatics and Division of Developmental Biology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Patricia C Fulkerson
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Marc E Rothenberg
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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Sharma S, Vashisht S, Gaur SN, Lavasa S, Arora N. Identification of B cell epitopes of Per a 5 allergen using bioinformatic approach. Immunobiology 2021; 226:152146. [PMID: 34717182 DOI: 10.1016/j.imbio.2021.152146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 04/09/2021] [Revised: 09/10/2021] [Accepted: 10/07/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND Immune epitopes of allergens are pivotal for development of novel diagnostic and therapeutic modalities. Present study aims to identify antigenic determinants of Per a 5, a clinically relevant cross reactive cockroach allergen. METHODS The three dimensional structure of Per a 5 was modelled using Modeller 9v11 software. A combination of sequence and structure based computational tools were employed for predicting B cell epitopes. Epitopes were synthesized and immunoreactivity was assessed by ELISA using cockroach hypersensitive patient's sera. Cross-reactivity potential of predicted epitopes was assessed with SDAP and ConSurf and validated by IgE ELISA with fungal and mite hypersensitive patient's sera. RESULTS Per a 5 structure exhibited good quality factor in ERRAT and high stereochemical stability. In silico analysis revealed six B cell epitopes (BC-P1 to P6). BC-P3 demonstrated significant IgE binding followed by BC-P2 and BC-P1 with cockroach hypersensitive patient's sera. Per a 5 epitopes demonstrate considerable similarity with broad spectrum of allergens from fungal, mites, helminths, fruits and nuts. Analysis of PD values indicate BC-P4 to be well conserved among dust mite and helminth GSTs (8.89, 10.63 and 10.69 with D. pteronyssinus, W. bancrofti and F. hepatica respectively). ConSurf analysis of Per a 5 revealed specific enrichment of evolutionarily similar amino acid residues in BC-P2 (with fungal and mite GSTs) and BC-P4 (with mite and helminth GSTs). Further, IgE binding analysis of epitopes demonstrate BC-P2, BC-P3 and BC-P5 as high IgE binders in fungal hypersensitive sera while BC-P1, BC-P2, BC-P4 and BC-P5 demonstrated significant IgE binding with mite hypersensitive sera. CONCLUSIONS Among the predicted epitopes, BC-P3 demonstrates maximal IgE binding ability. Computational analysis suggests strong evolutionary conservation and cross reactive potential of BC-P4 with allergens in dust mite and helminths. ELISA highlights predictive potential of analysing evolutionarily conserved residues for uncovering potentially cross reactive antigenic determinants. GENERAL SIGNIFICANCE Immune epitopes of Per a 5 were identified for aiding molecular diagnosis and potential cross reactivity.
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Affiliation(s)
- Swati Sharma
- Allergy and Immunology Section, CSIR-Institute of Genomics and Integrative Biology, New Delhi 110007, India; Academy of Scientific and Innovative Research, Ghaziabad, U.P., 201002, India
| | - Srishti Vashisht
- Allergy and Immunology Section, CSIR-Institute of Genomics and Integrative Biology, New Delhi 110007, India
| | - S N Gaur
- Department of Pulmonary Medicine, V.P. Chest Institute, University of Delhi, New Delhi 110007, India
| | | | - Naveen Arora
- Allergy and Immunology Section, CSIR-Institute of Genomics and Integrative Biology, New Delhi 110007, India; Academy of Scientific and Innovative Research, Ghaziabad, U.P., 201002, India
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50
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Omling E, Salö M, Stenström P, Merlo J, Gudjonsdottir J, Rudolfson N, Hagander L. Nationwide paediatric cohort study of a protective association between allergy and complicated appendicitis. Br J Surg 2021; 108:1491-1497. [PMID: 34689186 PMCID: PMC10364888 DOI: 10.1093/bjs/znab326] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 08/17/2021] [Indexed: 01/07/2023]
Abstract
BACKGROUND In a nationwide cohort the potentially protective association between allergy and complicated appendicitis was analysed, and the influence of seasonal antigens, antihistamine treatment, and timing of allergy onset assessed. METHODS Some 1 112 571 children born between 2000 and 2010 were followed from birth until the end of 2014. A cross-sectional analysis of appendicitis cases, with comparison of allergic versus non-allergic children for absolute risk and odds of complicated appendicitis was first undertaken. This was followed by a longitudinal analysis of children with allergy and matched controls who had never had an allergy, for incidence rate and hazard of subsequent complicated or simple appendicitis. RESULTS Of all children, 20.4 per cent developed allergy and 0.6 per cent had appendicitis during follow-up. Among children with appendicitis, complicated appendicitis was more common among non-allergic children (18.9 per cent, 948 of 5016) than allergic children (12.8 per cent, 173 of 1351) (P < 0.001), and allergic children had a lower adjusted odds of complicated appendicitis (adjusted odds ratio (OR) 0.80, 95 per cent c.i. 0.67 to 0.96; P = 0.021). The risk of complicated appendicitis among children with manifest allergy was reduced by one-third in the longitudinal analysis (incidence rate 0.13 versus 0.20 per 1000 person-years; hazard ratio (HR) 0.68, 95 per cent c.i. 0.58 to 0.81; P < 0.001), whereas the risk of simple appendicitis remained unchanged (incidence rate 0.91 versus 0.91; HR 1.00, 0.94 to 1.07; P = 0.932). Seasonal antigen exposure was a protective factor (adjusted OR 0.82, 0.71 to 0.94; P = 0.004) and ongoing antihistamine medication a risk factor (adjusted OR 2.28, 1.21 to 4.28; P = 0.012). CONCLUSION Children with allergy have a lower risk of complicated appendicitis, but the same overall risk of simple appendicitis. Seasonal antigen exposure reduced, and antihistamine treatment increased, the risk of complicated disease.
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Affiliation(s)
- E Omling
- Department of Clinical Sciences in Lund, Paediatrics, Lund University, Lund, Sweden
- Department of Paediatric Surgery, Children's Hospital, Skåne University Hospital in Lund, Lund,Sweden
| | - M Salö
- Department of Clinical Sciences in Lund, Paediatrics, Lund University, Lund, Sweden
- Department of Paediatric Surgery, Children's Hospital, Skåne University Hospital in Lund, Lund,Sweden
| | - P Stenström
- Department of Clinical Sciences in Lund, Paediatrics, Lund University, Lund, Sweden
- Department of Paediatric Surgery, Children's Hospital, Skåne University Hospital in Lund, Lund,Sweden
| | - J Merlo
- Department of Clinical Sciences in Malmö, Social Epidemiology, Lund University, Lund, Sweden
| | - J Gudjonsdottir
- Department of Clinical Sciences in Lund, Paediatrics, Lund University, Lund, Sweden
- Department of Paediatric Surgery, Children's Hospital, Skåne University Hospital in Lund, Lund,Sweden
| | - N Rudolfson
- Department of Clinical Sciences in Lund, Paediatrics, Lund University, Lund, Sweden
- Department of Paediatric Surgery, Children's Hospital, Skåne University Hospital in Lund, Lund,Sweden
| | - L Hagander
- Department of Clinical Sciences in Lund, Paediatrics, Lund University, Lund, Sweden
- Department of Paediatric Surgery, Children's Hospital, Skåne University Hospital in Lund, Lund,Sweden
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