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Zuurveld M, Díaz CB, Redegeld F, Folkerts G, Garssen J, van’t Land B, Willemsen LE. An advanced in vitro human mucosal immune model to predict food sensitizing allergenicity risk: A proof of concept using ovalbumin as model allergen. Front Immunol 2023; 13:1073034. [PMID: 36700233 PMCID: PMC9869142 DOI: 10.3389/fimmu.2022.1073034] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 12/19/2022] [Indexed: 01/12/2023] Open
Abstract
Background The global demand of sustainable food sources leads to introduction of novel foods on the market, which may pose a risk of inducing allergic sensitization. Currently there are no validated in vitro assays mimicking the human mucosal immune system to study sensitizing allergenicity risk of novel food proteins. The aim of this study was to introduce a series of sequential human epithelial and immune cell cocultures mimicking key immune events after exposure to the common food allergen ovalbumin from intestinal epithelial cell (IEC) activation up to mast cell degranulation. Methods This in vitro human mucosal food sensitizing allergenicity model combines crosstalk between IEC and monocyte-derived dendritic cells (moDC), followed by coculture of the primed moDCs with allogenic naïve CD4+ T cells. During subsequent coculture of primed CD4+ T cells with naïve B cells, IgE isotype-switching was monitored and supernatants were added to primary human mast cells to investigate degranulation upon IgE crosslinking. Mediator secretion and surface marker expression of immune cells were determined. Results Ovalbumin activates IEC and underlying moDCs, both resulting in downstream IgE isotype-switching. However, only direct exposure of moDCs to ovalbumin drives Th2 polarization and a humoral B cell response allowing for IgE mediated mast cell degranulation, IL13 and IL4 release in this sequential DC-T cell-B cell-mast cell model, indicating also an immunomodulatory role for IEC. Conclusion This in vitro coculture model combines multiple key events involved in allergic sensitization from epithelial cell to mast cell, which can be applied to study the allergic mechanism and sensitizing capacity of proteins.
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Affiliation(s)
- Marit Zuurveld
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands,*Correspondence: Marit Zuurveld, ; Linette E.M. Willemsen,
| | - Cristina Bueno Díaz
- Chemical Biology and Drug Discovery Group, Department of Pharmacological Sciences, Utrecht University, Utrecht, Netherlands
| | - Frank Redegeld
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Gert Folkerts
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Johan Garssen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands,Immunology Platform, Danone Nutricia Research B.V., Utrecht, Netherlands
| | - Belinda van’t Land
- Immunology Platform, Danone Nutricia Research B.V., Utrecht, Netherlands,Center for Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Linette E.M. Willemsen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands,*Correspondence: Marit Zuurveld, ; Linette E.M. Willemsen,
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Yang W, Peng T, Shi C, Cui F, Chen M, Zhang T. The Mechanism of Delayed Ischemic Preconditioning in Alleviating Acute Ischemia/Reperfusion Renal Injury through Treg Mediated by Immature CD11c + Dendritic Cells. KIDNEY DISEASES (BASEL, SWITZERLAND) 2022; 8:487-499. [PMID: 36590681 PMCID: PMC9798836 DOI: 10.1159/000527172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 09/18/2022] [Indexed: 11/16/2022]
Abstract
Introduction Renal ischemia-reperfusion injury (IRI) is one of the major causes of acute kidney injury, and its mechanism is complex involving multiple factors, while delayed ischemic preconditioning (DIPC) has a protective effect on the above process. In our previous study, we found that DIPC can exert its protection on renal IRI by inhibiting the maturation of dendritic cells (DCs), but the mechanism has not been clarified. This study aimed to investigate the protective mechanism of DIPC on renal IRI in mice through Treg mediated by immature DCs (imDCs). Methods The IRI mice model, DIPC treatment, and conditional CD11c+ DCs (CD11c-DTR) knockout mice were used to perform our study. The maturation and differentiation of DCs and Treg cells in the kidney and spleen were analyzed by flow cytometry. HE staining was used to evaluate the pathology of the kidney tissue. The level of creatinine (Cr), oxidative stress factors (SOD, MDA), and inflammatory factors (TNF-α, IL-10, IL-4) were also measured. Then, imDCs were co-cultured with HK-2 cells, and apoptosis was analyzed with flow cytometry and PI-Hoechst 33,342 fluorescence staining to assess the apoptosis rate of HK-2 cells under hypoxic-reoxygenated (H/R) conditions. Results DIPC could decrease renal Cr levels, alleviate pathological renal damage, and reduce oxidative stress and inflammation caused by IRI. Moreover, DIPC could decrease the number of mature DCs (mDCs) and increase Treg lymphocyte infiltration in the kidney tissue, while the reduction of DCs reversed this process. In addition, our in vitro experiment found that in the H/R model, the apoptosis of HK-2 cells decreased which were co-cultured with imDCs. Conclusion DIPC can regulate the differentiation of DCs into imDCs, thus affecting the differentiation level and distribution of Treg cells to exert its protective effect on renal IRI.
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Affiliation(s)
- Wenjuan Yang
- Department of Nephrology, General Hospital of Ningxia Medical University, Yinchuan, China,Wuxi People's Hospital, Wuxi, China,Ningxia Medical University, Yinchuan, China
| | - Tao Peng
- Ningxia Medical University, Yinchuan, China
| | - Chunli Shi
- Ningxia Medical University, Yinchuan, China,Department of Molecular Biology, Shanghai Centre for Clinical Laboratory, Shanghai, China
| | - Fang Cui
- Ningxia Medical University, Yinchuan, China
| | - Menghua Chen
- Department of Nephrology, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Medical University, Yinchuan, China,*Menghua Chen,
| | - Ting Zhang
- Department of Nephrology, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Medical University, Yinchuan, China,*Menghua Chen,
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Zuurveld M, Kiliaan PC, van Grinsven SE, Folkerts G, Garssen J, van't Land B, Willemsen LE. Ovalbumin-Induced Epithelial Activation Directs Monocyte-Derived Dendritic Cells to Instruct Type 2 Inflammation in T Cells Which Is Differentially Modulated by 2'-Fucosyllactose and 3-Fucosyllactose. J Innate Immun 2022; 15:222-239. [PMID: 36215948 PMCID: PMC10643896 DOI: 10.1159/000526528] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 08/11/2022] [Indexed: 11/19/2022] Open
Abstract
Allergic sensitization starts with epithelial cell activation driving dendritic cells (DCs) to instruct T helper 2 (Th2) cell polarization. Food allergens trigger intestinal epithelial cell (IEC) activation. Human milk oligosaccharides may temper the allergic phenotype by shaping mucosal immune responses.We investigated in vitro mucosal immune development after allergen exposure by combining ovalbumin (OVA)-preexposed IEC with monocyte-derived DCs (OVA-IEC-DCs) and subsequent coculture of OVA-IEC-DCs with Th cells. IECs were additionally preincubated with 2'FL or 3FL.OVA activation increased IEC cytokine secretion. OVA-IEC-DCs instructed both IL13 (p < 0.05) and IFNγ (p < 0.05) secretion from Th cells. 2'FL and 3FL permitted OVA-induced epithelial activation, but 2'FL-OVA-IEC-DCs boosted inflammatory and regulatory T-cell development. 3FL-OVA-IEC lowered IL12p70 and IL23 in DCs and suppressed IL13 (p < 0.005) in T cells, while enhancing IL17 (p < 0.001) and IL10 (p < 0.005).These results show that OVA drives Th2- and Th1-type immune responses via activation of IECs in this model. 2'FL and 3FL differentially affect OVA-IEC-driven immune effects. 2'FL boosted overall T-cell OVA-IEC immunity via DC enhancing inflammatory and regulatory responses. 3FL-OVA-IEC-DCs silenced IL13, shifting the balance towards IL17 and IL10.This model demonstrates the contribution of IEC to OVA Th2-type immunity. 2'FL and 3FL modulate the OVA-induced activation in this novel model to study allergic sensitization.
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Affiliation(s)
- Marit Zuurveld
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Pien C.J. Kiliaan
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Sophie E.L. van Grinsven
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Gert Folkerts
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Johan Garssen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
- Danone Nutricia Research, Utrecht, The Netherlands
| | - Belinda van't Land
- Danone Nutricia Research, Utrecht, The Netherlands
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Linette E.M. Willemsen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
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Feng H, Xiong X, Chen Z, Luo N, Wu Y. MALAT1 Induces Food Allergy by Promoting Release of IL-6 from Dendritic Cells and Suppressing the Immunomodulatory Function of Tregs. J Asthma Allergy 2022; 15:529-544. [PMID: 35515816 PMCID: PMC9064454 DOI: 10.2147/jaa.s341742] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 02/02/2022] [Indexed: 12/13/2022] Open
Abstract
Background Dendritic cells (DCs) comprise a valuable target for immune-modulation in food allergy (FA). Long noncoding RNA (lncRNA), metastasis associated lung adenocarcinoma transcript 1 (MALAT1) has immunomodulatory capacities and may influence the outcome of DC antigen presentation. However, the precise molecular mechanisms underlying the implication of MALAT1 in FA remain unclear. Methods BALB/c mice were sensitized to ovalbumin in accordance with a model of FA protocol and injected with adenovirus. After modeling, immunohistochemistry was performed to analyze the jejunal tissues of FA mice and hematoxylin-eosin staining and toluidine blue staining were performed to detect inflammation and mast cell numbers. Ovalbumin-sensitized mice were monitored for symptoms of diarrhea and rectal temperature. Immature DCs were stimulated by oxidized low density lipoprotein to trigger their maturation. Results MALAT1 was found highly expressed in mice with FA, and its silencing relieved allergic reactions with reduction in intestinal inflammatory cells and mast cells in FA mice. MALAT1 aggravated symptoms by downregulating zinc finger protein 36 (ZFP36). MALAT1 also downregulated ZFP36 expression to promote interleukin-6 (IL-6) secretion by DCs and maturation of DCs, with increased serum-specific immunoglobulin E (IgE) and IgG1 levels. Conclusion Together, these data suggested that therapeutically blocking MALAT1 in FA could reduce the severity of FA by decreasing secretion of IL-6 by DCs and suppressing the immunomodulation of Tregs.
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Affiliation(s)
- Hua Feng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330000, People’s Republic of China
- School of Public Health, Nanchang University, Nanchang, 330006, People’s Republic of China
| | - Xiujuan Xiong
- Department of Pathology, Basic Medical College of Nanchang University, Nanchang, 330006, People’s Republic of China
| | - Zhuo Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330000, People’s Republic of China
| | - Nan Luo
- School of Public Health, Nanchang University, Nanchang, 330006, People’s Republic of China
| | - Yongning Wu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330000, People’s Republic of China
- China National Center for Food Safety Risk Assessment, Beijing, 100022, People’s Republic of China
- Chinese Academy of Medical Science Research Unit, Beijing, 100730, People’s Republic of China
- Correspondence: Yongning Wu, State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330000, People’s Republic of China, Tel +86-10-52165589, Email
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Rahmaisyah D, Wasityastuti W, Astarini FD, Widasari DI. Protective effects of yacon syrup powder on colonic interleukin-23 and leukocyte infiltration profile in TNBS-induced colitis mouse model. MEDITERRANEAN JOURNAL OF NUTRITION AND METABOLISM 2022. [DOI: 10.3233/mnm-211506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: Inflammatory Bowel Disease (IBD) causes gastrointestinal tract dysregulation and triggers inflammation. Severe inflammatory events often lead to leukocyte infiltration. Yacon is known to have anti-inflammatory properties, making it a potential alternative treatment for colitis. AIMS: To investigate colonic Interleukin-23 (IL-23) level and leukocyte infiltration profile in 2,4,6-Trinitrobenzene Sulfonic Acid (TNBS)-induced colitis mouse model treated with yacon syrup powder. METHODS: Thirty male BALB/c mice (5 weeks old, body weight: 30.02±1.28 g) were randomly divided into 6 groups (K1-K6). Intra-rectal administration of TNBS was performed to K2-K6 to make the colitis model. K4-K6 were given yacon syrup powder daily for 14 days with the dose of 0.165, 0.331, and 0.662 g/30 g body weight (BW) respectively. IL-23 levels of colonic tissue were measured using ELISA. Leukocyte infiltration profile was calculated through microscopic observation of histology slides and presented in percentage and degree. RESULTS: Significantly different IL-23 levels were observed among the groups (P < 0.001). The percentage and degree of leukocyte infiltration in yacon-treated groups showed a significant decrease compared to colitis groups (P < 0.001). CONCLUSION: Yacon syrup powder provides beneficial effects on colitis mice by lowering the IL-23 level and number of leukocytes at the inflammation site.
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Affiliation(s)
- Dwi Rahmaisyah
- Master in Biomedical Sciences, Faculty of Medicine, Public Health and Nursing, UniversitasGadjah Mada, North Sekip, Yogyakarta, Indonesia
| | - Widya Wasityastuti
- Department of Physiology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, North Sekip, Yogyakarta, Indonesia
| | - Fajar Dwi Astarini
- Master in Biomedical Sciences, Faculty of Medicine, Public Health and Nursing, UniversitasGadjah Mada, North Sekip, Yogyakarta, Indonesia
| | - Dewiyani Indah Widasari
- Department of Anatomical Pathology, Faculty of Medicine, Public Health and Nursing, UniversitasGadjah Mada, North Sekip, Yogyakarta, Indonesia
- Department of Anatomical Pathology, Dr.Sardjito Hospital, Sekip, Yogyakarta, Indonesia
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Lu Y, Xia N, Cheng X. Regulatory T Cells in Chronic Heart Failure. Front Immunol 2021; 12:732794. [PMID: 34630414 PMCID: PMC8493934 DOI: 10.3389/fimmu.2021.732794] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 09/02/2021] [Indexed: 12/21/2022] Open
Abstract
Heart failure is a global problem with high hospitalization and mortality rates. Inflammation and immune dysfunction are involved in this disease. Owing to their unique function, regulatory T cells (Tregs) have reacquired attention recently. They participate in immunoregulation and tissue repair in the pathophysiology of heart failure. Tregs are beneficial in heart by suppressing excessive inflammatory responses and promoting stable scar formation in the early stage of heart injury. However, in chronic heart failure, the phenotypes and functions of Tregs changed. They transformed into an antiangiogenic and profibrotic cell type. In this review, we summarized the functions of Tregs in the development of chronic heart failure first. Then, we focused on the interactions between Tregs and their target cells. The target cells of Tregs include immune cells (such as monocytes/macrophages, dendritic cells, T cells, and B cells) and parenchymal cells (such as cardiomyocytes, fibroblasts, and endothelial cells). Next-generation sequencing and gene editing technology make immunotherapy of heart failure possible. So, prospective therapeutic approaches based on Tregs in chronic heart failure had also been evaluated.
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Affiliation(s)
- Yuzhi Lu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ni Xia
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiang Cheng
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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