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Ma J, Zhao M, Wang Y, Lv L, Qin L, Ling X, Sun J, Liu J, Long F. Se-rich tea polysaccharide extracted by high hydrostatic pressure attenuated anaphylaxis by improving gut microbiota and metabolic regulation. Int J Biol Macromol 2024; 269:132128. [PMID: 38723807 DOI: 10.1016/j.ijbiomac.2024.132128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 04/22/2024] [Accepted: 05/05/2024] [Indexed: 05/12/2024]
Abstract
Selenium-rich tea polysaccharides (Se-TPS) were extracted via high hydrostatic pressure technology with a pressure of 400 MPa (200-500 MPa) for 10 min (3-20 min) at a material-to-solvent ratio of 1:40 (1:20-1:50). Subsequently, Se-TPS1-4 were isolated and purified, with Se-TPS3-4 as the main components. A spectral analysis proved that Se, which has antioxidant activity, existed. An in vitro study found that among Se-TPS, Se-TPS3-4 attenuated the release of β-hexosaminidase, histamine, and interleukin (IL)-4. Furthermore, in vivo experiments revealed that treatment with Se-TPS downregulated IL-4 levels and upregulated TGF-β and interferon-γ levels to improve imbalanced Th1/Th2 immunity in tropomyosin-sensitized mice. Moreover, Se-TPS promoted Lactobacillus and norank_f_Muribaculaceaek growth and upregulated metabolites such as genipin and coniferyl alcohol. Overall, these results showed the strong anti-allergy potential of Se-TPS by regulating mast cell-mediated allergic inflammatory responses and microbiota regulation, highlighting the potential of Se-TPS as a novel therapeutic agent to regulate allergy-associated metabolic disorders.
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Affiliation(s)
- Jing Ma
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Mengya Zhao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Yu Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Liuqing Lv
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Liping Qin
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Xiaoling Ling
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Jiao Sun
- Department of Breast Surgery, The Affiliated Hospital of Qingdao University, China
| | - Jing Liu
- Institute of Animal Husbandry and Veterinary Medicine, Guizhou Academy of Agricultural Sciences, Guiyang 550005, China
| | - Fangyu Long
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China.
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2
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Gravina A, Olivero F, Brindisi G, Comerci AF, Ranucci C, Fiorentini C, Sculco E, Figliozzi E, Tudini L, Matys V, De Canditiis D, Piccioni MG, Zicari AM, Anania C. Dietary Intervention during Weaning and Development of Food Allergy: What Is the State of the Art? Int J Mol Sci 2024; 25:2769. [PMID: 38474015 DOI: 10.3390/ijms25052769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/14/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
Food allergy (FA) affects approximately 6-8% of children worldwide causing a significant impact on the quality of life of children and their families. In past years, the possible role of weaning in the development of FA has been studied. According to recent studies, this is still controversial and influenced by several factors, such as the type of food, the age at food introduction and family history. In this narrative review, we aimed to collect the most recent evidence about weaning and its role in FA development, organizing the gathered data based on both the type of study and the food. As shown in most of the studies included in this review, early food introduction did not show a potential protective role against FA development, and we conclude that further evidence is needed from future clinical trials.
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Affiliation(s)
- Alessandro Gravina
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | | | - Giulia Brindisi
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Antonia Fortunata Comerci
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Chiara Ranucci
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Cinzia Fiorentini
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Eleonora Sculco
- Department of Translation and Precision Medicine, Sapienza University of Rome, 00161 Rome, Italy
| | - Ethel Figliozzi
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Laura Tudini
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Viviana Matys
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | | | - Maria Grazia Piccioni
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Anna Maria Zicari
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Caterina Anania
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
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3
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Sun S, Jiang T, Gu Y, Yao L, Du H, Luo J, Che H. Contribution of five major apple polyphenols in reducing peanut protein sensitization and alleviating allergencitiy of peanut by changing allergen structure. Food Res Int 2023; 164:112297. [PMID: 36737898 DOI: 10.1016/j.foodres.2022.112297] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 11/28/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022]
Abstract
Peanuts are prone to trigger allergic reactions with high mortality rate. There is currently no effective way to prevent peanut allergy. In order to reduce the allergy risk of peanuts, it's significant to reduce sensitization of peanut prior to ingestion. In this study, the effects of five major apple polyphenols (epicatechin, phlorizin, rutin, chlorogenic acid, and catechin) -peanut protein on the sensitization of peanut allergens were studied by BALB/c peanut allergy model to access the contribution of each polyphenol in apple to peanut allergen sensitization reduction. Then, the mechanism was explored in terms of the effect of polyphenols on the simulated gastric digestion of peanut protein and the changes in structure of Ara h 1. The results showed that polyphenol binding could alleviate allergencitiy of peanut and regulate MAPK related signaling pathway. Among the five major apple polyphenols, epicatechin had the strongest inhibitory effect. The binding of epicatechin to the constitutive epitopes arginine led to changes in the spatial structure of Ara h 1, which resulted in the effective linear epitopes reduction. Modification of peanut allergens with polyphenols could effectively reduce the sensitization of peanut protein.
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Affiliation(s)
- Shanfeng Sun
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, The 2115 Talent Development Program of China Agricultural University, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Tianyi Jiang
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, The 2115 Talent Development Program of China Agricultural University, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yanjun Gu
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, The 2115 Talent Development Program of China Agricultural University, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Lu Yao
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, The 2115 Talent Development Program of China Agricultural University, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Hang Du
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, The 2115 Talent Development Program of China Agricultural University, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Jiangzuo Luo
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, The 2115 Talent Development Program of China Agricultural University, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Huilian Che
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, The 2115 Talent Development Program of China Agricultural University, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
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Costa J, Villa C, Mafra I. Quantitative Real-Time PCR for the Detection of Allergenic Species in Foods. Methods Mol Biol 2023; 2967:85-103. [PMID: 37608105 DOI: 10.1007/978-1-0716-3358-8_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Food allergy is an increasing challenge to public health, with widespread global distribution. With no cure for this pathology, the food-allergic individuals are forced to adopt food eviction measurements, relying on label information to avoid consuming the offending foods. To safeguard these individuals, the analytical methods based on real-time PCR approaches are currently faced as excellent tools to verify labeling compliance, aiding industry and regulatory agencies to efficiently manage food allergen control programs. Therefore, this chapter intends to describe a protocol of real-time PCR to analyze allergenic food species. For method development, the main steps to be considered are (i) in silico sequence analysis and primer/hydrolysis probe design, (ii) preparation of calibrators (model foods containing the allergenic ingredient), (iii) efficient DNA extraction from complex food matrices, (iv) amplification by real-time PCR with hydrolysis probe (90-200 bp) targeting a highly specific DNA region (allergen-encoding gene), (v) sequencing PCR products for identity confirmation, and (vi) validation and application to commercial foods. Herein, a real-time PCR approach for the detection and quantification of cashew nut as an allergenic food is described as an example protocol, including all the steps for method development and validation.
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Affiliation(s)
- Joana Costa
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Caterina Villa
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Isabel Mafra
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.
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Zhao H, Gu Z, Wang Y, Wang M, Zhan Y, Zhao X, Cao Z. IL-9 neutralizing antibody suppresses allergic inflammation in ovalbumin-induced allergic rhinitis mouse model. Front Pharmacol 2022; 13:935943. [PMID: 36172190 PMCID: PMC9510626 DOI: 10.3389/fphar.2022.935943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 08/18/2022] [Indexed: 11/13/2022] Open
Abstract
Allergic rhinitis is mainly mediated by IgE after specific individuals are exposed to allergens. It is a common nasal mucosa disease of non-infectious chronic inflammatory disease and is often accompanied by asthma and conjunctivitis. In the study of allergic asthma, it was found that IL-9 participates in the pathogenic development of asthma. Because asthma and allergic rhinitis have the same airway and the same disease, it is inferred that IL-9 may also play an important role in allergic rhinitis. BALB/c mice received intranasal stimulation of ovalbumin (OVA) treatment at different times. The nasal mucosa of the mice were then sliced and stained with Sirius red and Toluidine blue, and eosinophils and mast cells in the mucosa were counted. ELISA was used to detect the expression of OVA-IgE in peripheral blood. The Th2 cell fraction in the mouse spleen was detected by flow cytometry. The expressions of IL-4, IL-5, IL-9, and IL-13 and their mRNA in mucosa were detected by real-time PCR and flow cytometry bead array analysis. Finally, the expression changes of Thymic stromal lymphopoietin related proteins and its mRNA, JAK1/2, and STAT5 proteins were detected by real-time PCR and Western blot. After the intervention with the IL-9 neutralizing antibody, the symptoms of allergic rhinitis in mice were significantly reduced. The expression of OVA-IgE in the peripheral blood of mice was inhibited, the fraction of Th2 cells in the spleen decreased, the related cytokines (IL-4, IL-5, and IL-13) were inhibited, and their functions decreased. The TSLP-OX40/OX40L signal pathway and JAK1/2-STAT5 signal are inhibited. IL-9 neutralizing antibody has a good therapeutic effect on the mouse model of allergic rhinitis, which may be related to the TSLP-OX40/OX40L pathway and JAK1/2-STAT5 signaling.
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Affiliation(s)
- He Zhao
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Zhaowei Gu
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
- *Correspondence: Zhaowei Gu,
| | - Yunxiu Wang
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Meng Wang
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yue Zhan
- Medical Research Center, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xin Zhao
- Department of Key Laboratory of Research and Application of Animal Models for Environmental and Metabolic Diseases, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Zhiwei Cao
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
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Vaz-Rodrigues R, Mazuecos L, de la Fuente J. Current and Future Strategies for the Diagnosis and Treatment of the Alpha-Gal Syndrome (AGS). J Asthma Allergy 2022; 15:957-970. [PMID: 35879928 PMCID: PMC9307871 DOI: 10.2147/jaa.s265660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 07/12/2022] [Indexed: 11/23/2022] Open
Abstract
The α-Gal syndrome (AGS) is a pathognomonic immunoglobulin E (IgE)-mediated delayed anaphylaxis in foods containing the oligosaccharide galactose-α-1,3-galactose (α-Gal) such as mammalian meat or dairy products. Clinical presentation of AGS can also comprise immediate hypersensitivity due to anticancer therapy, gelatin-containing vaccines or mammalian serum-based antivenom. The IgE initial sensitization is caused by hard-bodied tick bites and symptomatic individuals typically develop delayed pruritus, urticaria, angioedema, anaphylaxis, malaise or gut-related symptoms. Due to inapparent presentation, delayed reactions and a wide variety of patients´ clinical history, the AGS diagnosis and treatment remain challenging. This review covers not only current diagnostic methods used for AGS such as the skin prick test (SPT), the oral food challenge (OFC), anti-α-Gal IgE levels measurement and the basophil activation test (BAT), but also potentially relevant next-generation diagnostic tools like the mast cell activation test (MAT), the histamine-release (HR) assay, omics technologies and model-based reasoning (MBR). Moreover, it focuses on the therapeutical medical and non-medical methods available and current research methods that are being applied in order to elucidate the molecular, physiological and immune mechanisms underlying this allergic disorder. Lastly, future treatment and preventive tools are also discussed, being of utmost importance for the identification of tick salivary molecules, with or without α-Gal modifications, that trigger IgE sensitivity as they could be the key for further vaccine development. Bearing in mind climate change, the tick-host paradigm will shift towards an increasing number of AGS cases in new regions worldwide, which will pose new challenges for clinicians in the future.
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Affiliation(s)
- Rita Vaz-Rodrigues
- SaBio (Health and Biotechnology), Instituto de Investigación en Recursos Cinegéticos IREC (CSIC-UCLM-JCCM), Ciudad Real, 13005, Spain
| | - Lorena Mazuecos
- SaBio (Health and Biotechnology), Instituto de Investigación en Recursos Cinegéticos IREC (CSIC-UCLM-JCCM), Ciudad Real, 13005, Spain
| | - José de la Fuente
- SaBio (Health and Biotechnology), Instituto de Investigación en Recursos Cinegéticos IREC (CSIC-UCLM-JCCM), Ciudad Real, 13005, Spain.,Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK, 74078, USA
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7
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Xiong Y, Xu G, Chen M, Ma H. Intestinal Uptake and Tolerance to Food Antigens. Front Immunol 2022; 13:906122. [PMID: 35757706 PMCID: PMC9226482 DOI: 10.3389/fimmu.2022.906122] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 05/16/2022] [Indexed: 11/24/2022] Open
Abstract
Food allergy is a growing concern due to its increasing world-wide incidence. Strict avoidance of allergens is a passive treatment strategy. Since the mechanisms responsible for the occurrence and development of food allergy have not yet been fully elucidated, effective individualized treatment options are lacking. In this review, we summarize the pathways through which food antigens enter the intestine and review the proposed mechanisms describing how the intestine acquires and tolerates food antigens. When oral tolerance is not established, food allergy occurs. In addition, we also discuss the contribution of commensal bacteria of the gut in shaping tolerance to food antigens in the intestinal tract. Finally, we propose that elucidating the mechanisms of intestinal uptake and tolerance of food antigens will provide additional clues for potential treatment options for food allergy.
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Affiliation(s)
- Yuhong Xiong
- Department of Pediatrics, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Institute of Immunology, The Chinese Academy of Sciences (CAS) Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Guifeng Xu
- Department of Pediatrics, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Mingwu Chen
- Department of Pediatrics, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Hongdi Ma
- Department of Pediatrics, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Institute of Immunology, The Chinese Academy of Sciences (CAS) Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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Ando T, Kitaura J. Tuning IgE: IgE-Associating Molecules and Their Effects on IgE-Dependent Mast Cell Reactions. Cells 2021; 10:cells10071697. [PMID: 34359869 PMCID: PMC8305778 DOI: 10.3390/cells10071697] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 06/30/2021] [Accepted: 07/02/2021] [Indexed: 12/15/2022] Open
Abstract
The recent emergence of anti-immunoglobulin E (IgE) drugs and their candidates for humans has endorsed the significance of IgE-dependent pathways in allergic disorders. IgE is distributed locally in the tissues or systemically to confer a sensory mechanism in a domain of adaptive immunity to the otherwise innate type of effector cells, namely, mast cells and basophils. Bound on the high-affinity IgE receptor FcεRI, IgE enables fast memory responses against revisiting threats of venoms, parasites, and bacteria. However, the dysregulation of IgE-dependent reactions leads to potentially life-threatening allergic diseases, such as asthma and anaphylaxis. Therefore, reactivity of the IgE sensor is fine-tuned by various IgE-associating molecules. In this review, we discuss the mechanistic basis for how IgE-dependent mast cell activation is regulated by the IgE-associating molecules, including the newly developed therapeutic candidates.
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Affiliation(s)
- Tomoaki Ando
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
- Correspondence: (T.A.); (J.K.); Tel.: +81-3-5802-1591 (T.A. & J.K.)
| | - Jiro Kitaura
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
- Department of Science of Allergy and Inflammation, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
- Correspondence: (T.A.); (J.K.); Tel.: +81-3-5802-1591 (T.A. & J.K.)
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