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Du Y, Yang B, Yao W, Ge L, Fan Q, Wang H. Clinical and Immunological Features of Bronchial Asthma Comorbid Chronic Urticaria: A Retrospective Study. Int Arch Allergy Immunol 2024:1-9. [PMID: 39226884 DOI: 10.1159/000540684] [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: 04/11/2024] [Accepted: 07/30/2024] [Indexed: 09/05/2024] Open
Abstract
INTRODUCTION Asthma and chronic urticaria (CU) are two high prevalent diseases and often coexist. The underlying relationship and potential immunological mechanism between the two diseases are still unclear. The objective of this study was to investigate the clinical and immunological feature of asthma comorbid with CU. METHODS A retrospective study was conducted. Fifty patients with asthma comorbid CU, 50 patients with asthma, and 50 patients with CU alone were included. Age and sex of the patients enrolled were matched. Data of demographic characteristics, clinical manifestations including disease severity (frequency of symptoms, age of onset, disease duration, symptom score, complication with allergic rhinitis) as well as serum immunological index including total IgE (tIgE), allergen-specific IgE (sIgE), and food-specific IgG4 (FS-IgG4), were collected and analyzed. RESULTS No significant differences in the frequency of symptoms, age of onset, and disease duration were found among the three groups. The score of asthma control test (ACT) in patients with asthma comorbid CU was significantly lower than that of asthma (p = 0.005); however, compared with patients with CU, the 7-day urticaria activity score (UAS7) of patients with asthma comorbid CU did not show obvious differences. Immunological index showed that the positive rates of tIgE, house dust mite (HDM)-sIgE, and FS-IgG4 were different among the three groups (p < 0.05). Patients with asthma comorbid CU had the highest rate of positive tIgE, moderate and severe positive sIgE to HDM. Egg-specific IgG4 (egg-sIgG4) had the highest positive rate in all groups. Patients of asthma comorbid CU obtained the highest rate of severe positive of egg-sIgG4. CONCLUSION Our results demonstrated that patients with asthma comorbid CU have lower control level of asthma symptoms, higher tIgE and HDM-sIgE level, and highest rate of severe positive egg-sIgG4. These results indicate that comorbidity of CU in asthma obviously increases the severity of allergens.
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Affiliation(s)
- Yuteng Du
- Department of Allergy and Clinical Immunology, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
- Department of Emergency Medicine, Hangzhou Third People's Hospital, Hangzhou, China
| | - Boyun Yang
- Department of Allergy and Clinical Immunology, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
| | - Wo Yao
- Department of Allergy and Clinical Immunology, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
| | - Liuya Ge
- Outpatient Care Department, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
| | - Qingqiu Fan
- Outpatient Care Department, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
| | - Huiying Wang
- Department of Allergy and Clinical Immunology, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
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Rusiñol L, Puig L. A Narrative Review of the IL-18 and IL-37 Implications in the Pathogenesis of Atopic Dermatitis and Psoriasis: Prospective Treatment Targets. Int J Mol Sci 2024; 25:8437. [PMID: 39126010 PMCID: PMC11312859 DOI: 10.3390/ijms25158437] [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: 06/16/2024] [Revised: 07/30/2024] [Accepted: 08/01/2024] [Indexed: 08/12/2024] Open
Abstract
Atopic dermatitis and psoriasis are prevalent inflammatory skin conditions that significantly impact the quality of life of patients, with diverse treatment options available. Despite advances in understanding their underlying mechanisms, recent research highlights the significance of interleukins IL-18 and IL-37, in Th1, Th2, and Th17 inflammatory responses, closely associated with the pathogenesis of psoriasis and atopic dermatitis. Hence, IL-18 and IL-37 could potentially become therapeutic targets. This narrative review synthesizes knowledge on these interleukins, their roles in atopic dermatitis and psoriasis, and emerging treatment strategies. Findings of a literature search up to 30 May 2024, underscore a research gap in IL-37-targeted therapies. Conversely, IL-18-focused treatments have demonstrated promise in adult-onset Still's Disease, warranting further exploration for their potential efficacy in psoriasis and atopic dermatitis.
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Affiliation(s)
- Lluís Rusiñol
- Dermatology Department, Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain;
- Institut de Recerca Sant Pau (IR Sant Pau), Sant Quintí 77-79, 08041 Barcelona, Spain
- Unitat Docent Hospital Universitari Sant Pau, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Lluís Puig
- Dermatology Department, Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain;
- Institut de Recerca Sant Pau (IR Sant Pau), Sant Quintí 77-79, 08041 Barcelona, Spain
- Unitat Docent Hospital Universitari Sant Pau, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
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Ranjitkar S, Krajewski D, Garcia C, Tedeschi C, Polukort SH, Rovatti J, Mire M, Blesso CN, Jellison E, Schneider SS, Ryan JJ, Mathias CB. IL-10 Differentially Promotes Mast Cell Responsiveness to IL-33, Resulting in Enhancement of Type 2 Inflammation and Suppression of Neutrophilia. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:1407-1419. [PMID: 38497670 PMCID: PMC11018500 DOI: 10.4049/jimmunol.2300884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 02/26/2024] [Indexed: 03/19/2024]
Abstract
Mast cells (MCs) play critical roles in the establishment of allergic diseases. We recently demonstrated an unexpected, proinflammatory role for IL-10 in regulating MC responses. IL-10 enhanced MC activation and promoted IgE-dependent responses during food allergy. However, whether these effects extend to IgE-independent stimuli is not clear. In this article, we demonstrate that IL-10 plays a critical role in driving IL-33-mediated MC responses. IL-10 stimulation enhanced MC expansion and degranulation, ST2 expression, IL-13 production, and phospho-relA upregulation in IL-33-treated cells while suppressing TNF-α. These effects were partly dependent on endogenous IL-10 and further amplified in MCs coactivated with both IL-33 and IgE/Ag. IL-10's divergent effects also extended in vivo. In a MC-dependent model of IL-33-induced neutrophilia, IL-10 treatment enhanced MC responsiveness, leading to suppression of neutrophils and decreased TNF-α. In contrast, during IL-33-induced type 2 inflammation, IL-10 priming exacerbated MC activity, resulting in MC recruitment to various tissues, enhanced ST2 expression, induction of hypothermia, recruitment of eosinophils, and increased MCPT-1 and IL-13 levels. Our data elucidate an important role for IL-10 as an augmenter of IL-33-mediated MC responses, with implications during both allergic diseases and other MC-dependent disorders. IL-10 induction is routinely used as a prognostic marker of disease improvement. Our data suggest instead that IL-10 can enhance ST2 responsiveness in IL-33-activated MCs, with the potential to both aggravate or suppress disease severity depending on the inflammatory context.
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Affiliation(s)
- Saurav Ranjitkar
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269
| | - Dylan Krajewski
- Department of Pharmaceutical and Administrative Sciences, Western New England University, Springfield, MA 01119
| | - Chelsea Garcia
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269
| | - Caitlin Tedeschi
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269
| | - Stephanie H. Polukort
- Department of Pharmaceutical and Administrative Sciences, Western New England University, Springfield, MA 01119
| | - Jeffrey Rovatti
- Department of Pharmaceutical and Administrative Sciences, Western New England University, Springfield, MA 01119
| | - Mohamed Mire
- Department of Pharmaceutical and Administrative Sciences, Western New England University, Springfield, MA 01119
| | | | - Evan Jellison
- Department of Immunology, University of Connecticut, Farmington, CT 06030
| | - Sallie S. Schneider
- Pioneer Valley Life Sciences Institute, Baystate Medical Center, Springfield, MA 01199
| | - John J. Ryan
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284
| | - Clinton B. Mathias
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269
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Qiao X, Yin J, Zheng Z, Li L, Feng X. Endothelial cell dynamics in sepsis-induced acute lung injury and acute respiratory distress syndrome: pathogenesis and therapeutic implications. Cell Commun Signal 2024; 22:241. [PMID: 38664775 PMCID: PMC11046830 DOI: 10.1186/s12964-024-01620-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Sepsis, a prevalent critical condition in clinics, continues to be the leading cause of death from infections and a global healthcare issue. Among the organs susceptible to the harmful effects of sepsis, the lungs are notably the most frequently affected. Consequently, patients with sepsis are predisposed to developing acute lung injury (ALI), and in severe cases, acute respiratory distress syndrome (ARDS). Nevertheless, the precise mechanisms associated with the onset of ALI/ARDS remain elusive. In recent years, there has been a growing emphasis on the role of endothelial cells (ECs), a cell type integral to lung barrier function, and their interactions with various stromal cells in sepsis-induced ALI/ARDS. In this comprehensive review, we summarize the involvement of endothelial cells and their intricate interplay with immune cells and stromal cells, including pulmonary epithelial cells and fibroblasts, in the pathogenesis of sepsis-induced ALI/ARDS, with particular emphasis placed on discussing the several pivotal pathways implicated in this process. Furthermore, we discuss the potential therapeutic interventions for modulating the functions of endothelial cells, their interactions with immune cells and stromal cells, and relevant pathways associated with ALI/ARDS to present a potential therapeutic strategy for managing sepsis and sepsis-induced ALI/ARDS.
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Affiliation(s)
- Xinyu Qiao
- Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- School of Clinical and Basic Medical Sciences, Shandong First Medical University& Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, China
| | - Junhao Yin
- Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- School of Clinical and Basic Medical Sciences, Shandong First Medical University& Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, China
| | - Zhihuan Zheng
- Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- School of Clinical and Basic Medical Sciences, Shandong First Medical University& Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, China
| | - Liangge Li
- Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- School of Clinical and Basic Medical Sciences, Shandong First Medical University& Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, China
| | - Xiujing Feng
- Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China.
- School of Clinical and Basic Medical Sciences, Shandong First Medical University& Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, China.
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.
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Taruselli MT, Qayum AA, Abebayehu D, Caslin HL, Dailey JM, Kotha A, Burchett JR, Kee SA, Maldonado TD, Ren B, Chao W, Zou L, Haque TT, Straus D, Ryan JJ. IL-33 Induces Cellular and Exosomal miR-146a Expression as a Feedback Inhibitor of Mast Cell Function. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:1277-1286. [PMID: 38381001 PMCID: PMC10984763 DOI: 10.4049/jimmunol.2200916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/30/2024] [Indexed: 02/22/2024]
Abstract
IL-33 is an inflammatory cytokine that promotes allergic disease by activating group 2 innate lymphoid cells, Th2 cells, and mast cells. IL-33 is increased in asthmatics, and its blockade suppresses asthma-like inflammation in mouse models. Homeostatic control of IL-33 signaling is poorly understood. Because the IL-33 receptor, ST2, acts via cascades used by the TLR family, similar feedback mechanisms may exist. MicroRNA (miR)-146a is induced by LPS-mediated TLR4 signaling and serves as a feedback inhibitor. Therefore, we explored whether miR-146a has a role in IL-33 signaling. IL-33 induced cellular and exosomal miR-146a expression in mouse bone marrow-derived mast cells (BMMCs). BMMCs transfected with a miR-146a antagonist or derived from miR-146a knockout mice showed enhanced cytokine expression in response to IL-33, suggesting that miR-146a is a negative regulator of IL-33-ST2 signaling. In vivo, miR-146a expression in plasma exosomes was elevated after i.p. injection of IL-33 in wild-type but not mast cell-deficient KitW-sh/W-sh mice. Finally, KitW-sh/W-sh mice acutely reconstituted with miR-146a knockout BMMCs prior to IL-33 challenge had elevated plasma IL-6 levels compared with littermates receiving wild-type BMMCs. These results support the hypothesis that miR-146a is a feedback regulator of IL-33-mediated mast cell functions associated with allergic disease.
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Affiliation(s)
| | - Amina Abdul Qayum
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284
| | - Daniel Abebayehu
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284
| | - Heather L. Caslin
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284
| | - Jordan M. Dailey
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284
| | - Aditya Kotha
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284
| | - Jason R. Burchett
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284
| | - Sydney A. Kee
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284
| | - Tania D. Maldonado
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284
| | - Boyang Ren
- Center for Shock, Trauma and Anesthesiology Research, University of Maryland School of Medicine, HSF2 G-S003B, 20 Penn Street, Baltimore, 21201
| | - Wei Chao
- Center for Shock, Trauma and Anesthesiology Research, University of Maryland School of Medicine, HSF2 G-S003B, 20 Penn Street, Baltimore, 21201
| | - Lin Zou
- Center for Shock, Trauma and Anesthesiology Research, University of Maryland School of Medicine, HSF2 G-S003B, 20 Penn Street, Baltimore, 21201
| | - Tamara T. Haque
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284
| | - David Straus
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284
| | - John J. Ryan
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284
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Theoharides TC, Twahir A, Kempuraj D. Mast cells in the autonomic nervous system and potential role in disorders with dysautonomia and neuroinflammation. Ann Allergy Asthma Immunol 2024; 132:440-454. [PMID: 37951572 DOI: 10.1016/j.anai.2023.10.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/16/2023] [Accepted: 10/06/2023] [Indexed: 11/14/2023]
Abstract
Mast cells (MC) are ubiquitous in the body, and they are critical for not only in allergic diseases but also in immunity and inflammation, including having potential involvement in the pathophysiology of dysautonomias and neuroinflammatory disorders. MC are located perivascularly close to nerve endings and sites such as the carotid bodies, heart, hypothalamus, the pineal gland, and the adrenal gland that would allow them not only to regulate but also to be affected by the autonomic nervous system (ANS). MC are stimulated not only by allergens but also many other triggers including some from the ANS that can affect MC release of neurosensitizing, proinflammatory, and vasoactive mediators. Hence, MC may be able to regulate homeostatic functions that seem to be dysfunctional in many conditions, such as postural orthostatic tachycardia syndrome, autism spectrum disorder, myalgic encephalomyelitis/chronic fatigue syndrome, and Long-COVID syndrome. The evidence indicates that there is a possible association between these conditions and diseases associated with MC activation. There is no effective treatment for any form of these conditions other than minimizing symptoms. Given the many ways MC could be activated and the numerous mediators released, it would be important to develop ways to inhibit stimulation of MC and the release of ANS-relevant mediators.
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Affiliation(s)
- Theoharis C Theoharides
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, Florida; Laboratory of Molecular Immunopharmacology and Drug Discovery, Department of Immunology, Tufts University School of Medicine, Boston, Massachusetts.
| | - Assma Twahir
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, Florida
| | - Duraisamy Kempuraj
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, Florida
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Liu A, Hayashi M, Ohsugi Y, Katagiri S, Akira S, Iwata T, Nakashima T. The IL-33/ST2 axis is protective against acute inflammation during the course of periodontitis. Nat Commun 2024; 15:2707. [PMID: 38548743 PMCID: PMC10978877 DOI: 10.1038/s41467-024-46746-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 03/07/2024] [Indexed: 04/01/2024] Open
Abstract
Periodontitis, which is induced by repeated bacterial invasion and the ensuing immune reactions that follow, is the leading cause of tooth loss. Periodontal tissue is comprised of four different components, each with potential role in pathogenesis, however, most studies on immune responses focus on gingival tissue. Here, we present a modified ligature-induced periodontitis model in male mice to analyze the pathogenesis, which captures the complexity of periodontal tissue. We find that the inflammatory response in the peri-root tissues and the expression of IL-6 and RANKL by Thy-1.2- fibroblasts/stromal cells are prominent throughout the bone destruction phase, and present already at an early stage. The initiation phase is characterized by high levels of ST2 (encoded by Il1rl1) expression in the peri-root tissue, suggesting that the IL-33/ST2 axis is involved in the pathogenesis. Both Il1rl1- and Il33-deficient mice exhibit exacerbated bone loss in the acute phase of periodontitis, along with macrophage polarization towards a classically activated phenotype and increased neutrophil infiltration, indicating a protective role of the IL-33/ST2 axis in acute inflammation. Thus, our findings highlight the hidden role of the peri-root tissue and simultaneously advance our understanding of the etiology of periodontitis via implicating the IL-33/ST2 axis.
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Affiliation(s)
- Anhao Liu
- Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Mikihito Hayashi
- Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Shizuo Akira
- Laboratory of Host Defense, IFReC,Osaka University, 3-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Tomoki Nakashima
- Faculty of Dentistry, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan.
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Mehrani Y, Morovati S, Tajik T, Sarmadi S, Bitaraf A, Sourani Z, Shahverdi M, Javadi H, Kakish JE, Bridle BW, Karimi K. Communication between Mast Cells and Group 2 Innate Lymphoid Cells in the Skin. Cells 2024; 13:462. [PMID: 38474426 DOI: 10.3390/cells13050462] [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: 02/01/2024] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024] Open
Abstract
The skin is a dynamic organ with a complex immune network critical for maintaining balance and defending against various pathogens. Different types of cells in the skin, such as mast cells (MCs) and group 2 innate lymphoid cells (ILC2s), contribute to immune regulation and play essential roles in the early immune response to various triggers, including allergens. It is beneficial to dissect cell-to-cell interactions in the skin to elucidate the mechanisms underlying skin immunity. The current manuscript concentrates explicitly on the communication pathways between MCs and ILC2s in the skin, highlighting their ability to regulate immune responses, inflammation, and tissue repair. Furthermore, it discusses how the interactions between MCs and ILC2s play a crucial role in various skin conditions, such as autoimmune diseases, dermatological disorders, and allergic reactions. Understanding the complex interactions between MCs and ILC2s in different skin conditions is crucial to developing targeted treatments for related disorders. The discovery of shared pathways could pave the way for novel therapeutic interventions to restore immunological balance in diseased skin tissues.
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Affiliation(s)
- Yeganeh Mehrani
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
- Department of Clinical Sciences, School of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad 91779-48974, Iran
| | - Solmaz Morovati
- Division of Biotechnology, Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz 71557-13876, Iran
| | - Tahmineh Tajik
- Department of Pathobiology, School of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad 91779-48974, Iran
| | - Soroush Sarmadi
- Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran 14199-63114, Iran
| | - Ali Bitaraf
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran 14167-53955, Iran
| | - Zahra Sourani
- Department of Pathology, School of Veterinary Medicine, Shahrekord University, Shahrekord 88186-34141, Iran
| | - Mohammad Shahverdi
- Department of Pathology, School of Veterinary Medicine, Shahrekord University, Shahrekord 88186-34141, Iran
- Clinical Biochemistry Research Center, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord 88157-13471, Iran
| | - Helia Javadi
- Department of Medical Sciences, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON N6A 3K7, Canada
| | - Julia E Kakish
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Byram W Bridle
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Khalil Karimi
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
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9
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Singh H, Khurana A, Kumar A, Saluja R. Serum levels of interleukin-33, soluble ST2 and IgE in patients with asthma: a case-control study. J Asthma 2024; 61:48-57. [PMID: 37548422 DOI: 10.1080/02770903.2023.2244579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/20/2023] [Accepted: 08/01/2023] [Indexed: 08/08/2023]
Abstract
INTRODUCTION Interleukins play a very important role in the pathophysiology of asthma. Interleukin-33 (IL-33) is a partially explored cytokine in asthma. It binds with a specific receptor called suppression of tumorigenicity 2 (ST2). The study aims to evaluate the serum levels of IL-33, sST2 and IgE in asthmatic patients and healthy controls and its further association with the forced expiratory volume in one second (FEV 1%) and absolute eosinophil count. MATERIALS AND METHODS We enrolled 100 asthmatic patients and 57 healthy subjects for the study. We measured serum levels of IgE, IL-33, and sST2. Based on serum IgE levels, patients were divided into allergic and non-allergic groups. Statistical analysis was done by using Graph pad prism software 8. RESULTS We found significantly elevated levels of IL-33 and IgE in asthmatic patients as compared to healthy subjects. However, sST2 levels were significantly lower in asthmatic patients than in healthy subjects. FEV1% values were decreased in uncontrolled asthmatic patients. In addition, serum levels of IL-33 were significantly correlated with the IgE. Furthermore, we found a significant correlation between IL-33 and AEC in allergic asthmatic patients. CONCLUSION In this study, we reported elevated IL-33 and IgE levels and decreased sST2 levels in asthmatic patients compared to healthy controls. IL-33 and sST2 may act as inflammatory biomarkers for allergic diseases such as asthma.
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Affiliation(s)
- Himadri Singh
- Department of Biochemistry, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India
| | - Alkesh Khurana
- Department of Pulmonary Medicine and TB, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India
| | - Ashok Kumar
- Department of Biochemistry, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India
| | - Rohit Saluja
- Department of Biochemistry, All India Institute of Medical Sciences, Bibinagar, Telangana, India
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10
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Mesjasz A, Trzeciak M, Gleń J, Jaskulak M. Potential Role of IL-37 in Atopic Dermatitis. Cells 2023; 12:2766. [PMID: 38067193 PMCID: PMC10706414 DOI: 10.3390/cells12232766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 11/24/2023] [Accepted: 11/28/2023] [Indexed: 12/18/2023] Open
Abstract
Interleukin 37 (IL-37) is a recently discovered member of the IL-1 cytokine family that appears to have anti-inflammatory and immunosuppressive effects in various diseases. IL-37 acts as a dual-function cytokine, exerting its effect extracellularly by forming a complex with the receptors IL-18 α (IL-18Rα) and IL-1R8 and transmitting anti-inflammatory signals, as well as intracellularly by interacting with Smad3, entering the nucleus, and inhibiting the transcription of pro-inflammatory genes. Consequently, IL-37 is linked to IL-18, which plays a role in the pathogenesis of atopic dermatitis (AD), consistent with our studies. Some isoforms of IL-37 are expressed by keratinocytes, monocytes, and other skin immune cells. IL-37 has been found to modulate the skewed T helper 2 (Th2) inflammation that is fundamental to the pathogenesis of AD. This review provides an up-to-date summary of the function of IL-37 in modulating the immune system and analyses its potential role in the pathogenesis of AD. Moreover, it speculates on IL-37's hypothetical value as a therapeutic target in the treatment of AD.
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Affiliation(s)
- Alicja Mesjasz
- Dermatological Students Scientific Association, Department of Dermatology, Venereology and Allergology, Faculty of Medicine, Medical University of Gdansk, 80-214 Gdansk, Poland;
| | - Magdalena Trzeciak
- Department of Dermatology, Venereology and Allergology, Faculty of Medicine, Medical University of Gdansk, 80-214 Gdansk, Poland;
| | - Jolanta Gleń
- Department of Dermatology, Venereology and Allergology, Faculty of Medicine, Medical University of Gdansk, 80-214 Gdansk, Poland;
| | - Marta Jaskulak
- Department of Immunobiology and Environmental Microbiology, Faculty of Health Sciences, Medical University of Gdansk, 80-214 Gdansk, Poland;
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11
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Gao J, Li Y, Guan X, Mohammed Z, Gomez G, Hui Y, Zhao D, Oskeritzian CA, Huang H. IL-33 priming and antigenic stimulation synergistically promote the transcription of proinflammatory cytokine and chemokine genes in human skin mast cells. BMC Genomics 2023; 24:592. [PMID: 37798647 PMCID: PMC10557204 DOI: 10.1186/s12864-023-09702-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 09/27/2023] [Indexed: 10/07/2023] Open
Abstract
BACKGROUND Antigenic stimulation through cross-linking the IgE receptor and epithelial cell-derived cytokine IL-33 are potent stimuli of mast cell (MC) activation. Moreover, IL-33 primes a variety of cell types, including MCs to respond more vigorously to external stimuli. However, target genes induced by the combined IL-33 priming and antigenic stimulation have not been investigated in human skin mast cells (HSMCs) in a genome-wide manner. Furthermore, epigenetic changes induced by the combined IL-33 priming and antigenic stimulation have not been evaluated. RESULTS We found that IL-33 priming of HSMCs enhanced their capacity to promote transcriptional synergy of the IL1B and CXCL8 genes by 16- and 3-fold, respectively, in response to combined IL-33 and antigen stimulation compared to without IL-33 priming. We identified the target genes in IL-33-primed HSMCs in response to the combined IL-33 and antigenic stimulation using RNA sequencing (RNA-seq). We found that the majority of genes synergistically upregulated in the IL-33-primed HSMCs in response to the combined IL-33 and antigenic stimulation were predominantly proinflammatory cytokine and chemokine genes. Moreover, the combined IL-33 priming and antigenic stimulation increase chromatin accessibility in the synergy target genes but not synergistically. Transcription factor binding motif analysis revealed more binding sites for NF-κB, AP-1, GABPA, and RAP1 in the induced or increased chromatin accessible regions of the synergy target genes. CONCLUSIONS Our study demonstrates that IL-33 priming greatly potentiates MCs' ability to transcribe proinflammatory cytokine and chemokine genes in response to antigenic stimulation, shining light on how epithelial cell-derived cytokine IL-33 can cause exacerbation of skin MC-mediated allergic inflammation.
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Affiliation(s)
- Junfeng Gao
- Department of Immunology and Genomic Medicine, National Jewish Health, 1400 Jackson Street, Denver, CO, 80206, USA
| | - Yapeng Li
- Department of Immunology and Genomic Medicine, National Jewish Health, 1400 Jackson Street, Denver, CO, 80206, USA
| | - Xiaoyu Guan
- Department of Immunology and Genomic Medicine, National Jewish Health, 1400 Jackson Street, Denver, CO, 80206, USA
| | - Zahraa Mohammed
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, USA
- College of Medicine, AI-Mustansiriyah University, Baghdad, Iraq
| | - Gregorio Gomez
- Department of Biomedical Sciences, University of Houston College of Medicine, Houston, TX, USA
| | - Yvonne Hui
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, USA
| | - Dianzheng Zhao
- Department of Immunology and Genomic Medicine, National Jewish Health, 1400 Jackson Street, Denver, CO, 80206, USA
| | - Carole A Oskeritzian
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, USA
| | - Hua Huang
- Department of Immunology and Genomic Medicine, National Jewish Health, 1400 Jackson Street, Denver, CO, 80206, USA.
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Denver, CO, USA.
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12
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Yu W, Du J, Peng L, Zhang T. RORα overexpression reduced interleukin-33 expression and prevented mast cell degranulation and inflammation by inducing autophagy in allergic rhinitis. Immun Inflamm Dis 2023; 11:e1017. [PMID: 37904695 PMCID: PMC10580702 DOI: 10.1002/iid3.1017] [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: 04/19/2023] [Revised: 09/03/2023] [Accepted: 09/05/2023] [Indexed: 11/01/2023] Open
Abstract
BACKGROUND Retinoid acid receptor related orphan receptor α (RORα) is a nuclear receptor that along with other bioactive factors regulates cell proliferation, differentiation, and immunomodulation in vivo. AIMS The objective of this study was to explore the function and mechanism of RORα in allergic rhinitis (AR). MATERIALS AND METHODS Derp1 was used to construct an AR cell model in HNEpC cells, and RORα was overexpressed or silenced in the AR HNEpC cells. Next, LAD2 cells were co-cultured with the Derp1-treated HNEpC cells. Additionally, an AR mouse model was established using by OVA, and a RORα Adenovirus was delivered by nebulizing. Pathological tissue structures were evaluated by hematoxylin-eosin staining, and the levels of RORα, interleukin-33 (IL-33), and other proteins were analyzed immunohistochemistry, western blotting, and immunofluorescence staining. IL-33, IL-4, IL-5, and IL-13 levels were detected using enzyme-linked immunosorbent assay kits and cell migration was assessed by Transwell assays. RESULTS Our data showed that RORα was downregulated in the nasal mucosa tissues of AR patients. Derp1 treatment could cause a downregulation of RORα, upregulation of IL-33, the induction of NLRP3 inflammasomes, and cell migration in HNEpC cells. Furthermore, RORα overexpression dramatically attenuated IL-33 levels, NLRP3 inflammasome activity, and the migration of AR HNEpC cells induced with Derp1. Moreover, RORα in AR HNEpC cells could prevent mast cell (MC) degranulation and inflammation by accelerating autophagy, RORα overexpression inhibited MC degranulation and NLRP3-induced inflammation in the AR model mice. RORα overexpression reduced IL-33 expression in nasal epithelial cells, and also suppressed MC degranulation and inflammation by promoting autophagy. CONCLUSION RORα inhibits NLRP3 inflammasome in HNEpC, and attenuated mast cells degranulation and inflammation through autophagy in AR.
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Affiliation(s)
- Wangbo Yu
- Department of Otolaryngology‐Head and Neck SurgeryThe First Affiliated Hospital of Jinan UniversityGuangzhouGuangdongChina
- Department of Otolaryngology‐Head and Neck SurgeryAffiliated Hospital of North Sichuan Medical CollegeNanchongSichuanChina
| | - Jingwei Du
- Department of Otolaryngology‐Head and Neck Surgery, Nanchong Central Hospital, The Second Clinical Medical CollegeNorth Sichuan Medical CollegeNanchongSichuanChina
| | - Lijuan Peng
- Department of Microbiology and ImmunologySchool of Basic Medical Sciences,North Sichuan Medical CollegeNanchongSichuanChina
| | - Tao Zhang
- Department of Otolaryngology‐Head and Neck SurgeryThe First Affiliated Hospital of Jinan UniversityGuangzhouGuangdongChina
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13
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Mehrani Y, Morovati S, Tieu S, Karimi N, Javadi H, Vanderkamp S, Sarmadi S, Tajik T, Kakish JE, Bridle BW, Karimi K. Vitamin D Influences the Activity of Mast Cells in Allergic Manifestations and Potentiates Their Effector Functions against Pathogens. Cells 2023; 12:2271. [PMID: 37759494 PMCID: PMC10528041 DOI: 10.3390/cells12182271] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Mast cells (MCs) are abundant at sites exposed to the external environment and pathogens. Local activation of these cells, either directly via pathogen recognition or indirectly via interaction with other activated immune cells and results in the release of pre-stored mediators in MC granules. The release of these pre-stored mediators helps to enhance pathogen clearance. While MCs are well known for their protective role against parasites, there is also significant evidence in the literature demonstrating their ability to respond to viral, bacterial, and fungal infections. Vitamin D is a fat-soluble vitamin and hormone that plays a vital role in regulating calcium and phosphorus metabolism to maintain skeletal homeostasis. Emerging evidence suggests that vitamin D also has immunomodulatory properties on both the innate and adaptive immune systems, making it a critical regulator of immune homeostasis. Vitamin D binds to its receptor, called the vitamin D receptor (VDR), which is present in almost all immune system cells. The literature suggests that a vitamin D deficiency can activate MCs, and vitamin D is necessary for MC stabilization. This manuscript explores the potential of vitamin D to regulate MC activity and combat pathogens, with a focus on its ability to fight viruses.
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Affiliation(s)
- Yeganeh Mehrani
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada; (Y.M.); (S.T.); (S.V.); (J.E.K.)
- Department of Clinical Sciences, School of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad 91779-48974, Iran;
| | - Solmaz Morovati
- Division of Biotechnology, Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz 71557-13876, Iran;
| | - Sophie Tieu
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada; (Y.M.); (S.T.); (S.V.); (J.E.K.)
| | - Negar Karimi
- Department of Clinical Sciences, School of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad 91779-48974, Iran;
| | - Helia Javadi
- Department of Medical Sciences, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON N6A 3K7, Canada;
| | - Sierra Vanderkamp
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada; (Y.M.); (S.T.); (S.V.); (J.E.K.)
| | - Soroush Sarmadi
- Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran 14174-66191, Iran;
| | - Tahmineh Tajik
- Department of Pathobiology, School of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad 91779-48974, Iran;
| | - Julia E. Kakish
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada; (Y.M.); (S.T.); (S.V.); (J.E.K.)
| | - Byram W. Bridle
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada; (Y.M.); (S.T.); (S.V.); (J.E.K.)
| | - Khalil Karimi
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada; (Y.M.); (S.T.); (S.V.); (J.E.K.)
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14
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O'Sullivan JA, Youngblood BA, Schleimer RP, Bochner BS. Siglecs as potential targets of therapy in human mast cell- and/or eosinophil-associated diseases. Semin Immunol 2023; 69:101799. [PMID: 37413923 PMCID: PMC10528103 DOI: 10.1016/j.smim.2023.101799] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
Siglecs (sialic acid-binding immunoglobulin-like lectins) are a family of vertebrate glycan-binding cell-surface proteins. The majority mediate cellular inhibitory activity once engaged by specific ligands or ligand-mimicking molecules. As a result, Siglec engagement is now of interest as a strategy to therapeutically dampen unwanted cellular responses. When considering allergic inflammation, human eosinophils and mast cells express overlapping but distinct patterns of Siglecs. For example, Siglec-6 is selectively and prominently expressed on mast cells while Siglec-8 is highly specific for both eosinophils and mast cells. This review will focus on a subset of Siglecs and their various endogenous or synthetic sialoside ligands that regulate eosinophil and mast cell function and survival. It will also summarize how certain Siglecs have become the focus of novel therapies for allergic and other eosinophil- and mast cell-related diseases.
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Affiliation(s)
- Jeremy A O'Sullivan
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | | | - Robert P Schleimer
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Bruce S Bochner
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
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15
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Dailey JM, Kee SA, Tharakan A, Kazi A, Burchett JR, Kolawole EM, Boyd Ballance W, Kotha A, Le QT, Schwartz LB, Straus DB, Martin RK, Sebti SM, Ryan JJ. Inhibiting Isoprenylation Suppresses FcεRI-Mediated Mast Cell Function and Allergic Inflammation. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:527-538. [PMID: 37449905 PMCID: PMC10545418 DOI: 10.4049/jimmunol.2200862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 06/08/2023] [Indexed: 07/18/2023]
Abstract
IgE-mediated mast cell activation is a driving force in allergic disease in need of novel interventions. Statins, long used to lower serum cholesterol, have been shown in multiple large-cohort studies to reduce asthma severity. We previously found that statins inhibit IgE-induced mast cell function, but these effects varied widely among mouse strains and human donors, likely due to the upregulation of the statin target, 3-hydroxy-3-methylgutaryl-CoA reductase. Statin inhibition of mast cell function appeared to be mediated not by cholesterol reduction but by suppressing protein isoprenylation events that use cholesterol pathway intermediates. Therefore, we sought to circumvent statin resistance by targeting isoprenylation. Using genetic depletion of the isoprenylation enzymes farnesyltransferase and geranylgeranyl transferase 1 or their substrate K-Ras, we show a significant reduction in FcεRI-mediated degranulation and cytokine production. Furthermore, similar effects were observed with pharmacological inhibition with the dual farnesyltransferase and geranylgeranyl transferase 1 inhibitor FGTI-2734. Our data indicate that both transferases must be inhibited to reduce mast cell function and that K-Ras is a critical isoprenylation target. Importantly, FGTI-2734 was effective in vivo, suppressing mast cell-dependent anaphylaxis, allergic pulmonary inflammation, and airway hyperresponsiveness. Collectively, these findings suggest that K-Ras is among the isoprenylation substrates critical for FcεRI-induced mast cell function and reveal isoprenylation as a new means of targeting allergic disease.
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Affiliation(s)
- Jordan M Dailey
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA
| | - Sydney A Kee
- Department of Biology, Virginia Commonwealth University, Richmond, VA
| | - Anuj Tharakan
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA
| | - Aslamuzzaman Kazi
- Department of Pharmacology and Toxicology, and Massey Cancer Center, Virginia Commonwealth University, Richmond, VA
| | - Jason R Burchett
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA
| | | | | | - Aditya Kotha
- Department of Biology, Virginia Commonwealth University, Richmond, VA
| | - Quang T Le
- Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA
| | - Lawrence B Schwartz
- Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA
| | - David B Straus
- Department of Biology, Virginia Commonwealth University, Richmond, VA
| | - Rebecca K Martin
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA
| | - Said M Sebti
- Department of Pharmacology and Toxicology, and Massey Cancer Center, Virginia Commonwealth University, Richmond, VA
| | - John J Ryan
- Department of Biology, Virginia Commonwealth University, Richmond, VA
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16
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Jeon YJ, Gil CH, Won J, Jo A, Kim HJ. Symbiotic microbiome Staphylococcus epidermidis restricts IL-33 production in allergic nasal epithelium via limiting the cellular necroptosis. BMC Microbiol 2023; 23:154. [PMID: 37237381 DOI: 10.1186/s12866-023-02898-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 05/17/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Allergic rhinitis (AR) is characterized by airway inflammation in nasal mucosa from inhaled allergens and interleukin (IL)-33 is the potent inducer of Th2 inflammation in allergic nasal epithelium. Staphylococcus epidermidis is one of the most abundant colonizers of the healthy human nasal mucosa and might impact the allergen-induced inflammatory responses in the nasal epithelium. Thus, we sought to characterize the mechanism of S. epidermidis regulating Th2 inflammation and IL-33 production in AR nasal mucosa. RESULTS The AR symptoms were alleviated and eosinophilic infiltration, serum IgE levels, and Th2 cytokines were significantly decreased in OVA-sensitized AR mice in response to human nasal commensal S. epidermidis. The inoculation of S. epidermidis to normal human nasal epithelial cells reduced IL-33 and GATA3 transcriptions and also reduced IL-33 and GATA3 expression in AR nasal epithelial (ARNE) cells and the nasal mucosa of AR mice. Our data exhibited that the cellular necroptosis of ARNE cells might be involved in IL-33 production and inoculation of S. epidermidis decreased the phosphorylation of necroptosis enzymes in ARNE cells, which was related to the reduction of IL-33 production. CONCLUSIONS We present that human nasal commensal S. epidermidis reduces allergic inflammation by suppressing IL-33 production in nasal epithelium. Our findings indicate that S. epidermidis serves a role in blocking allergen-induced cellular necroptosis in allergic nasal epithelium which might be a key mechanism of reduction of IL-33 and Th2 inflammation.
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Affiliation(s)
- Yung Jin Jeon
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Chan Hee Gil
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jina Won
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ara Jo
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hyun Jik Kim
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul, Republic of Korea.
- Sensory Organ Research Institute, Seoul National University Medical Research Center, Seoul, Republic of Korea.
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, 103, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
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17
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Singh H, Khadanga S, Goel SK, Majumder S, Baig MS, Bhatia V, Chaudhary N, Saluja R. Evaluation of interleukin-33 & sST2 levels in type-2 diabetic mellitus patients with or without metabolic syndrome. Indian J Med Res 2023; 157:470-476. [PMID: 37955221 PMCID: PMC10443722 DOI: 10.4103/ijmr.ijmr_1444_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Indexed: 11/14/2023] Open
Abstract
Background & objectives Diabetes mellitus (DM) is characterized by increase in blood glucose levels due to defective insulin secretion or insulin sensitivity. Interleukins (ILs) are known to play an important role in the pathogenesis of DM. The aim of this study was to investigate the serum concentration of IL-33 and its receptor soluble ST2 (sST2) in patients with diabetes and draw a correlation between their serum levels and different standard glycaemic indices of patients affected with type-2 diabetes with or without metabolic syndrome. Methods Thirty type-2 diabetic individuals and 30 healthy controls were recruited for this study. Serum and plasma were separated by centrifugation of blood for quantitative measurement of IL-33, sST2 and other biochemical parameters. Results It was observed that serum IL-33 levels were significantly less and sST2 levels were significantly high in type-2 diabetic individuals as compared to healthy controls. A significant correlation between the serum IL-33 concentration and fasting plasma glucose (FPG) and postprandial plasma glucose (PPG) levels were also found. Additionally, data also elucidated that serum levels of high-density lipoprotein, low-density lipoprotein or triglyceride in type-2 diabetics did not influence the serum levels of IL-33 and sST2, thereby excluding these factors as the major drivers of changes in serum IL-33 and sST2 concentration. Interpretation & conclusions This study demonstrated alteration in serum levels of IL-33 and sST2 in type-2 diabetic individuals. Further mechanistic studies, focusing on the progression of type-2 diabetes could elucidate the involvement of IL-33 in the cellular acquisition of insulin resistance as observed in type-2 diabetics.
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Affiliation(s)
- Himadri Singh
- Department of Biochemistry, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India
| | - Sagar Khadanga
- Department of Medicine, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India
| | - Sudhir K. Goel
- Department of Biochemistry, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India
| | - Syamantak Majumder
- Department of Biological Sciences, Birla Institute of Technology & Sciences, Pilani, Rajasthan, India
| | - Mirza S. Baig
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology, Indore, Madhya Pradesh, India
| | - Vikas Bhatia
- Department of Community Medicine and Family Medicine, All India Institute of Medical Sciences, Bibinagar, Telangana, India
| | - Neha Chaudhary
- Department of Community & Family Medicine, All India Institute of Medical Science, Patna, Bihar, India
| | - Rohit Saluja
- Department of Biochemistry, All India Institute of Medical Sciences, Bibinagar, Telangana, India
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18
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Zhou X, Hu Y, Liu L, Liu L, Chen H, Huang D, Ju M, Luan C, Chen K, Zhang J. IL-33-mediated activation of mast cells is involved in the progression of imiquimod-induced psoriasis-like dermatitis. Cell Commun Signal 2023; 21:52. [PMID: 36894987 PMCID: PMC9996901 DOI: 10.1186/s12964-023-01075-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 02/11/2023] [Indexed: 03/11/2023] Open
Abstract
BACKGROUND Psoriasis is a chronic inflammatory dermatosis with an unclear pathogenesis. Mast cells (MCs) can serve as a bridge between innate and adaptive immunity and are involved in the regulation of the inflammatory state and immune homeostasis in diseases. MCs constitutively express interleukin-33 receptor T1/ST2 (IL-33R). IL-33 is a potent MCs activator that is actively secreted by keratinocytes in psoriasis. However, the regulatory role of MCs in psoriasis remains uncertain. Therefore, we hypothesised that IL-33 could promote MC activation to regulate psoriasis development. METHODS We performed experiments on wild-type (WT) and MC-deficient (Kit Wsh/Wsh) mice, established psoriasis-like mouse models using imiquimod (IMQ), and performed RNA sequencing and transcriptomic analysis of skin lesions. Exogenous administration was performed using recombinant IL-33. Validation and evaluation were performed using PSI scoring, immunofluorescence, immunohistochemistry, and qPCR. RESULTS We observed an upregulation in the number and activation of MCs in patients with psoriasis and in IMQ-induced psoriasis-like dermatitis. Deficiency of MCs ameliorates IMQ-induced psoriatic dermatitis at an early stage. IL-33 is increased and co-localized with MCs in the dermis of psoriasis-like lesions using immunofluorescence. Compared to WT mice, IMQ-induced KitWsh/Wsh mice demonstrated a delayed response to exogenous IL-33. CONCLUSIONS MCs are activated by IL-33 in the early stages of psoriasis and exacerbate psoriasis-associated skin inflammation. The regulation of MC homeostasis may be a potential therapeutic strategy for psoriasis. Video Abstract.
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Affiliation(s)
- Xuyue Zhou
- Institute of Dermatology, Chinese Academy of Medical Science and Peking Union Medical College, Nanjing, China
| | - Yu Hu
- Institute of Dermatology, Chinese Academy of Medical Science and Peking Union Medical College, Nanjing, China
| | - Lingxi Liu
- Institute of Dermatology, Chinese Academy of Medical Science and Peking Union Medical College, Nanjing, China
| | - Lihao Liu
- Institute of Dermatology, Chinese Academy of Medical Science and Peking Union Medical College, Nanjing, China
| | - Hongying Chen
- Institute of Dermatology, Chinese Academy of Medical Science and Peking Union Medical College, Nanjing, China
| | - Dan Huang
- Institute of Dermatology, Chinese Academy of Medical Science and Peking Union Medical College, Nanjing, China
| | - Mei Ju
- Institute of Dermatology, Chinese Academy of Medical Science and Peking Union Medical College, Nanjing, China
| | - Chao Luan
- Institute of Dermatology, Chinese Academy of Medical Science and Peking Union Medical College, Nanjing, China.
| | - Kun Chen
- Institute of Dermatology, Chinese Academy of Medical Science and Peking Union Medical College, Nanjing, China.
| | - Jiaan Zhang
- Institute of Dermatology, Chinese Academy of Medical Science and Peking Union Medical College, Nanjing, China.
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19
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Theoharides TC, Kempuraj D. Role of SARS-CoV-2 Spike-Protein-Induced Activation of Microglia and Mast Cells in the Pathogenesis of Neuro-COVID. Cells 2023; 12:688. [PMID: 36899824 PMCID: PMC10001285 DOI: 10.3390/cells12050688] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/07/2023] [Accepted: 02/16/2023] [Indexed: 02/24/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes coronavirus disease 2019 (COVID-19). About 45% of COVID-19 patients experience several symptoms a few months after the initial infection and develop post-acute sequelae of SARS-CoV-2 (PASC), referred to as "Long-COVID," characterized by persistent physical and mental fatigue. However, the exact pathogenetic mechanisms affecting the brain are still not well-understood. There is increasing evidence of neurovascular inflammation in the brain. However, the precise role of the neuroinflammatory response that contributes to the disease severity of COVID-19 and long COVID pathogenesis is not clearly understood. Here, we review the reports that the SARS-CoV-2 spike protein can cause blood-brain barrier (BBB) dysfunction and damage neurons either directly, or via activation of brain mast cells and microglia and the release of various neuroinflammatory molecules. Moreover, we provide recent evidence that the novel flavanol eriodictyol is particularly suited for development as an effective treatment alone or together with oleuropein and sulforaphane (ViralProtek®), all of which have potent anti-viral and anti-inflammatory actions.
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Affiliation(s)
- Theoharis C. Theoharides
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
- Laboratory of Molecular Immunopharmacology and Drug Discovery, Department of Immunology, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Duraisamy Kempuraj
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
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David E, Ungar B, Renert-Yuval Y, Facheris P, Del Duca E, Guttman-Yassky E. The evolving landscape of biologic therapies for atopic dermatitis: Present and future perspective. Clin Exp Allergy 2023; 53:156-172. [PMID: 36653940 DOI: 10.1111/cea.14263] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/05/2022] [Accepted: 11/23/2022] [Indexed: 01/20/2023]
Abstract
Atopic dermatitis (AD) is one of the most common, chronic inflammatory skin diseases with a significant physical, emotional and socioeconomic burden. In recent years the understanding of AD pathogenesis has expanded from the Th2-centred perspective, with the recognition of the involvement of other immune axes. In different AD endotypes, influenced by environment, genetics and race, transcriptomic profiles have identified differing contributions of multiple immune axes such as, Th17, Th22 and Th1. The enriched pathogenic model of AD has catalysed the development of numerous biologic therapies targeting a range of key molecules implicated in disease progression. Currently, dupilumab and tralokinumab, which both target the Th2 pathway, are the only approved biologic therapies for AD in the United States and Europe. New biologic therapies in development, however, target different Th2-pathway molecules along with cytokines in other immune axes, including Th17 and Th22, offering promise for varied treatments for this heterogeneous disease. As the biologic pipeline advances, the integration into clinical practice and approval of these experimental biologics may provide more effective, tailored therapeutic solutions and illuminate on the pathologic processes of AD across a broader, more diverse patient population.
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Affiliation(s)
- Eden David
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Benjamin Ungar
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Yael Renert-Yuval
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA
| | - Paola Facheris
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Ester Del Duca
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Emma Guttman-Yassky
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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21
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Song X, Zhang L, Du X, Zheng Y, Jia T, Zhou T, Che D, Geng S. Neuroblast Differentiation-Associated Protein Derived Polypeptides: AHNAK(5758-5775) Induces Inflammation by Activating Mast Cells via ST2. Immunol Invest 2023; 52:178-193. [PMID: 36511894 DOI: 10.1080/08820139.2022.2151368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Psoriasis is a chronic inflammatory skin disease. Mast cells are significantly increased and activated in psoriatic lesions and are involved in psoriatic inflammation. Some endogenous substances can interact with the surface receptors of mast cells and initiate the release of downstream cytokines that participate in inflammatory reactions. Neuroblast differentiation-associated protein (AHNAK) is mainly expressed in the skin, esophagus, kidney, and other organs and participates in various biological processes in the human body. AHNAK and its derived peptides have been reported to be involved in the activation of mast cells and other immune processes. This study aimed to investigate whether AHNAK (5758-5775), a neuroblast differentiation-associated protein-derived polypeptide, could be considered a new endogenous substance in psoriasis patients, which activates mast cells and induces the skin inflammatory response contributing to psoriasis. Wild-type mice were treated with AHNAK(5758-5775) to observe the infiltration of inflammatory cells in the skin and cytokine release in vivo. The release of inflammatory mediators by mouse primary mast cells and the laboratory of allergic disease 2 (LAD2) human mast cells was measured in vitro. Molecular docking analysis, molecular dynamics simulation, and siRNA transfection were used to identify the receptor of AHNAK(5758-5775). AHNAK(5758-5775) could cause skin inflammation and cytokine release in wild-type mice and activated mast cells in vitro. Moreover, suppression of tumorigenicity 2 (ST2) might be a key receptor mediating AHNAK(5758-5775)'s effect on mast cells and cytokine release. We propose a novel polypeptide, AHNAK(5758-5775), which induces an inflammatory reaction and participates in the occurrence and development of psoriasis by activating mast cells.
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Affiliation(s)
- Xiangjin Song
- Department of Dermatology, Northwest Hospital, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Lei Zhang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, China
| | - Xueshan Du
- Department of Dermatology, Northwest Hospital, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Center for Dermatology Disease, Precision Medical Institute, Xi'an, China
| | - Yi Zheng
- Department of Dermatology, Northwest Hospital, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Center for Dermatology Disease, Precision Medical Institute, Xi'an, China
| | - Tao Jia
- Department of Dermatology, Northwest Hospital, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Tong Zhou
- Department of Dermatology, Northwest Hospital, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Delu Che
- Department of Dermatology, Northwest Hospital, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Center for Dermatology Disease, Precision Medical Institute, Xi'an, China
| | - Songmei Geng
- Department of Dermatology, Northwest Hospital, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Center for Dermatology Disease, Precision Medical Institute, Xi'an, China
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22
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Song YS, Jamali N, Sorenson CM, Sheibani N. Vitamin D Receptor Expression Limits the Angiogenic and Inflammatory Properties of Retinal Endothelial Cells. Cells 2023; 12:335. [PMID: 36672270 PMCID: PMC9856450 DOI: 10.3390/cells12020335] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 01/18/2023] Open
Abstract
The integrity of retinal endothelial cell (EC) is essential for establishing and maintaining the retinal blood barrier to ensure proper vision. Vitamin D is a hormone with known protective roles in EC function. The majority of vitamin D action is mediated through the vitamin D receptor (VDR). VDR is a nuclear receptor whose engagement by vitamin D impacts the expression of many genes with important roles in regulation of angiogenesis and inflammation. Although many studies have investigated vitamin D-VDR action in cardiovascular protection and tumor angiogenesis, its impact on retinal EC function and regulation of ocular angiogenesis and inflammation is exceedingly limited. We previously showed calcitriol, the active form of vitamin D, is a potent inhibitor of retinal neovascularization in vivo and retinal EC capillary morphogenesis in vitro. Here, using retinal EC prepared from wild-type (Vdr+/+) and VDR-deficient (Vdr-/-) mice, we show that retinal EC express VDR and its expression is induced by calcitriol. The lack of VDR expression had a significant impact on endothelial cell-cell and cell-matrix interactions. Vdr-/- retinal EC proliferated at a slower rate and were more adherent and less migratory. They also exhibited increased expression levels of inflammatory markers driven in part by sustained activation of STAT1 and NF-κB pathways and were more sensitive to oxidative challenge. These changes were attributed, in part, to down-regulation of endothelial nitric oxide synthetase, enhanced hepcidin expression, and increased intracellular iron levels. Taken together, our results indicate that VDR expression plays a fundamental role in maintaining the proper angiogenic and inflammatory state of retinal EC.
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Affiliation(s)
- Yong-Seok Song
- Departments of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
- McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - Nasim Jamali
- Departments of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
- McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - Christine M. Sorenson
- McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - Nader Sheibani
- Departments of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
- McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
- Department of Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53705, USA
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23
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Maurer M, Cheung DS, Theess W, Yang X, Dolton M, Guttman A, Choy DF, Dash A, Grimbaldeston MA, Soong W. Phase 2 randomized clinical trial of astegolimab in patients with moderate to severe atopic dermatitis. J Allergy Clin Immunol 2022; 150:1517-1524. [PMID: 36041655 DOI: 10.1016/j.jaci.2022.08.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 07/12/2022] [Accepted: 08/05/2022] [Indexed: 01/09/2023]
Abstract
BACKGROUND The binding of IL-33 to its receptor ST2 (alias of IL1RL1) leads to the release of inflammatory mediators and may play a role in the pathogenesis of atopic dermatitis. Astegolimab is a fully human, IgG2 mAb that binds to ST2 and inhibits IL-33 signaling. OBJECTIVES This study sought to assess the efficacy, safety, and pharmacokinetics of astegolimab in patients with atopic dermatitis. METHODS This was a randomized, placebo-controlled, phase 2 study in which adults with chronic atopic dermatitis were randomized 1:1 to receive astegolimab 490 mg every 4 weeks or placebo, for 16 weeks. The primary outcome was the percentage of change from baseline to week 16 of the Eczema Area and Severity Index score. RESULTS A total of 65 patients were enrolled in the study (placebo, n = 32; astegolimab, n = 33). The adjusted mean percentage of change from baseline to week 16 in the Eczema Area and Severity Index score was -51.47% for astegolimab compared with -58.24% for placebo, with a nonsignificant treatment difference of 6.77% (95% CI: -16.57-30.11; P = .5624). No differences were observed between treatment groups for secondary efficacy outcomes and in exploratory biomarkers (blood eosinophils, serum IL-5, serum CCL13). With the use of loading dose, pharmacokinetic exposure was sufficient from week 1. Astegolimab was well-tolerated, with a safety profile consistent with that observed in previous clinical trials. CONCLUSIONS In patients with atopic dermatitis, astegolimab did not show a significant difference compared to placebo for the primary or secondary outcomes.
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Affiliation(s)
- Marcus Maurer
- Fraunhofer Institute for Translational Medicine and Pharmacology, Allergology and Immunology, Berlin, Germany; Institute of Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
| | | | | | | | | | | | | | - Ajit Dash
- Genentech, Inc, South San Francisco, Calif
| | | | - Weily Soong
- Alabama Allergy and Asthma Center and Clinical Research Center of Alabama, Birmingham, Ala
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24
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Ishida M, Miyagawa F, Nishi K, Sugahara T. Aqueous Extract from Cuminum cyminum L. Seed Alleviates Ovalbumin-Induced Allergic Rhinitis in Mouse via Balancing of Helper T Cells. Foods 2022; 11:3224. [PMCID: PMC9601982 DOI: 10.3390/foods11203224] [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] [Indexed: 12/04/2022] Open
Abstract
Cuminum cyminum L. (cumin) seeds are widely used as a spice. Although we previously reported that the aqueous extract of cumin seeds suppresses the degranulation of rat basophilic RBL-2H3 cells, it has not been clarified whether the extract alleviates actual allergy symptoms in vivo. Therefore, in this study, we investigated the effect of oral administration of cumin seed aqueous extract (CAE) in ovalbumin (OVA)-induced allergic rhinitis. BALB/c mice were randomly divided into the following three groups: control group (five mice), OVA group (five mice), and OVA + CAE group (five mice). Allergic rhinitis was induced by sensitization (intraperitoneal, 25 μg OVA and 1.98 mg aluminum hydroxide gel) followed by challenge (intranasal, 400 μg OVA). The oral administration of CAE (25 mg/kg) reduced the sneezing frequency of OVA-induced allergic rhinitis model mice. In addition to reducing the serum immunoglobulin E and IL-4 levels, the oral administration of CAE reduced the production of T-helper type-2 (Th2) cytokines (IL-4, IL-5, IL-10, and IL-13) in the splenocytes of the model mice. Furthermore, a significant increase in the ratio of Th1 to Th2 cells was observed in the CAE-administered group. Our findings suggest that the ingestion of CAE improves T cell balance, the dominant state of Th2, and alleviates allergic rhinitis symptoms.
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Affiliation(s)
- Momoko Ishida
- Department of Bioscience, Graduate School of Agriculture, Ehime University, Matsuyama 790-8566, Ehime, Japan
| | - Fuka Miyagawa
- Food and Health Sciences Research Center, Ehime University, Matsuyama 790-8566, Ehime, Japan
| | - Kosuke Nishi
- Department of Bioscience, Graduate School of Agriculture, Ehime University, Matsuyama 790-8566, Ehime, Japan
- Food and Health Sciences Research Center, Ehime University, Matsuyama 790-8566, Ehime, Japan
| | - Takuya Sugahara
- Department of Bioscience, Graduate School of Agriculture, Ehime University, Matsuyama 790-8566, Ehime, Japan
- Food and Health Sciences Research Center, Ehime University, Matsuyama 790-8566, Ehime, Japan
- Correspondence: ; Tel.: +81-89-946-9863
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25
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Combined IgE neutralization and Bifidobacterium longum supplementation reduces the allergic response in models of food allergy. Nat Commun 2022; 13:5669. [PMID: 36167830 PMCID: PMC9515155 DOI: 10.1038/s41467-022-33176-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/06/2022] [Indexed: 11/09/2022] Open
Abstract
IgE is central to the development of allergic diseases, and its neutralization alleviates allergic symptoms. However, most of these antibodies are based on IgG1, which is associated with an increased risk of fragment crystallizable-mediated side effects. Moreover, omalizumab, an anti-IgE antibody approved for therapeutic use, has limited benefits for patients with high IgE levels. Here, we assess a fusion protein with extracellular domain of high affinity IgE receptor, FcεRIα, linked to a IgD/IgG4 hybrid Fc domain we term IgETRAP, to reduce the risk of IgG1 Fc-mediated side effects. IgETRAP shows enhanced IgE binding affinity compared to omalizumab. We also see an enhanced therapeutic effect of IgETRAP in food allergy models when combined with Bifidobacterium longum, which results in mast cell number and free IgE levels. The combination of IgETRAP and B. longum may therefore represent a potent treatment for allergic patients with high IgE levels. IgE is a critical component of the allergic response and therapeutic targeting can alleviate symptomology. Here the authors propose the combined use of Bifidobacterium longum and a FcεRIα extracellular domain linked to a IgD/IgG4 hybrid Fc domain fusion protein called IgETRAP and show reduction of mast cell and IgE levels in models of food allergy.
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26
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Yu X, Chen T, Huang N, Jin Y, Yang L. Skin Commensal Bacteria Modulates the Immune Balance of Mice to Alleviate Atopic Dermatitis-Induced Damage. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:4731675. [PMID: 36164402 PMCID: PMC9509248 DOI: 10.1155/2022/4731675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/18/2022] [Accepted: 08/25/2022] [Indexed: 11/18/2022]
Abstract
Objective Although studies indicate that Staphylococcus epidermidis (S. epidermidis) can regulate inflammation and anti-inflammatory cytokines, there is limited evidence supporting their effects on atopic dermatitis (AD). Here, we aimed to investigate the effects and potential mechanism of skin commensal bacteria on the immunity of mice with AD. Methods Twenty-four female BALB/C mice were selected and divided randomly into 4 groups: normal group, atopic dermatitis model group (AD), atopic dermatitis/substrate group (AD/substrates), and atopic dermatitis/substrates/epidermidis group (AD/S. epidermidis). All the mice were given different ways. After 14 days, their skin conditions were scored, and the serum, ear tissue, and inguinal lymph node tissue were collected and analyzed. Furthermore, the flow cytometry was used to analyze the number of CD4°+°CD25°+°Foxp3°+°Treg in the mouse lymph node tissue. Results Compared with the AD/substrate group, the mice ear thickness and dermatitis score were significantly reduced in the AD/S. epidermidis group; skin epidermis, acanthosis, the degree of keratinization, inflammatory cell infiltration in the dermis, and the number of mast cells were declined. The serum levels of IgE, IgG1, IgG2a, and TNF-α, IFN-γ, IL-4, and Eotaxin were significantly declined in the AD/S. epidermidis compared with the AD/substrate group. The proportion of CD4°+°CD25°+°Foxp3°+°Treg cells in the lymph node tissue was significantly increased in the AD/S. epidermidis group compared with the AD/substrate group. Conclusion Staphylococcus epidermidis can regulate mice's immune balance to alleviate AD-induced skin damage.
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Affiliation(s)
- Xianshui Yu
- Department of Dermatology, 920th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Kunming, Yunnan 650032, China
| | - Ting Chen
- Department of Pharmacy, 920th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Kunming, Yunnan 650032, China
| | - Ning Huang
- Department of Dermatology, 920th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Kunming, Yunnan 650032, China
| | - Yanxia Jin
- Department of Dermatology, 920th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Kunming, Yunnan 650032, China
| | - Ling Yang
- Department of Dermatology, 920th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Kunming, Yunnan 650032, China
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27
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Bergmann C, Poli A, Agache I, Bianchini R, Bax HJ, Castells M, Crescioli S, Dombrowicz D, Ferastraoaru D, Fiebiger E, Gould HJ, Hartmann K, Izquierdo E, Jordakieva G, Josephs DH, Jutel M, Levi‐Schaffer F, de las Vecillas L, Lotze MT, Osborn G, Pascal M, Redegeld F, Rosenstreich D, Roth‐Walter F, Schmidt‐Weber C, Shamji M, Steveling EH, Turner MC, Untersmayr E, Jensen‐Jarolim E, Karagiannis SN. AllergoOncology: Danger signals in allergology and oncology: A European Academy of Allergy and Clinical Immunology (EAACI) Position Paper. Allergy 2022; 77:2594-2617. [PMID: 35152450 PMCID: PMC9545837 DOI: 10.1111/all.15255] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 02/07/2022] [Accepted: 02/10/2022] [Indexed: 01/27/2023]
Abstract
The immune system interacts with many nominal 'danger' signals, endogenous danger-associated (DAMP), exogenous pathogen (PAMP) and allergen (AAMP)-associated molecular patterns. The immune context under which these are received can promote or prevent immune activating or inflammatory mechanisms and may orchestrate diverse immune responses in allergy and cancer. Each can act either by favouring a respective pathology or by supporting the immune response to confer protective effects, depending on acuity or chronicity. In this Position Paper under the collective term danger signals or DAMPs, PAMPs and AAMPs, we consider their diverse roles in allergy and cancer and the connection between these in AllergoOncology. We focus on their interactions with different immune cells of the innate and adaptive immune system and how these promote immune responses with juxtaposing clinical outcomes in allergy and cancer. While danger signals present potential targets to overcome inflammatory responses in allergy, these may be reconsidered in relation to a history of allergy, chronic inflammation and autoimmunity linked to the risk of developing cancer, and with regard to clinical responses to anti-cancer immune and targeted therapies. Cross-disciplinary insights in AllergoOncology derived from dissecting clinical phenotypes of common danger signal pathways may improve allergy and cancer clinical outcomes.
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Affiliation(s)
- Christoph Bergmann
- Department of OtorhinolaryngologyRKM740 Interdisciplinary ClinicsDüsseldorfGermany
| | - Aurélie Poli
- Neuro‐Immunology GroupDepartment of OncologyLuxembourg Institute of HealthLuxembourgLuxembourg
| | - Ioana Agache
- Faculty of MedicineTransylania University BrasovBrasovRomania
| | - Rodolfo Bianchini
- Comparative MedicineThe Interuniversity Messerli Research InstituteUniversity of Veterinary Medicine ViennaMedical University of ViennaUniversity of ViennaViennaAustria
| | - Heather J. Bax
- St. John's Institute of DermatologySchool of Basic & Medical BiosciencesGuy's Hospital, King's College LondonLondonUnited Kindgom,School of Cancer and Pharmaceutical SciencesGuy's Hospital, King's College LondonLondonUnited Kingdom
| | - Mariana Castells
- Division of Allergy and Clinical Immunology, Department of MedicineBrigham and Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA
| | - Silvia Crescioli
- St. John's Institute of DermatologySchool of Basic & Medical BiosciencesGuy's Hospital, King's College LondonLondonUnited Kindgom
| | - David Dombrowicz
- University of Lille, Inserm, CHU Lille, Institut Pasteur de Lille U1011‐EGIDLilleFrance
| | - Denisa Ferastraoaru
- Department of Internal Medicine/Allergy and Immunology, Montefiore Medical CenterAlbert Einstein College of MedicineBronxNew YorkUSA
| | - Edda Fiebiger
- Division of Gastroenterology, Hepatology and Nutrition Research, Department of Medicine ResearchChildren's University Hospital BostonBostonMassachusettsUSA
| | - Hannah J. Gould
- Randall Centre for Cell and Molecular Biophysics, School of Basic & Medical BiosciencesKing's College London, New Hunt's HouseLondonUnited Kingdom,Medical Research Council & Asthma UK Centre in Allergic Mechanisms of AsthmaLondonUnited Kingdom
| | - Karin Hartmann
- Department of DermatologyUniversity of BaselBaselSwitzerland
| | - Elena Izquierdo
- IMMA, School of Medicine, Institute of Applied Molecular MedicineCEU San Pablo UniversityMadridSpain
| | - Galateja Jordakieva
- Department of Physical Medicine, Rehabilitation and Occupational MedicineMedical University of ViennaViennaAustria
| | - Debra H. Josephs
- St. John's Institute of DermatologySchool of Basic & Medical BiosciencesGuy's Hospital, King's College LondonLondonUnited Kindgom,School of Cancer and Pharmaceutical SciencesGuy's Hospital, King's College LondonLondonUnited Kingdom
| | - Marek Jutel
- Department of Clinical ImmunologyWroclaw Medical UniversityWroclawPoland,ALL‐MED Medical Research InstituteWroclawPoland
| | - Francesca Levi‐Schaffer
- Pharmacology and Experimental Therapeutics Unit, School of Pharmacy, Faculty of MedicineThe Institute for Drug Research, The Hebrew University of JerusalemJerusalemIsrael
| | | | - Michael T. Lotze
- G.27A Hillman Cancer CenterUniversity of Pittsburgh Medical CenterPittsburghPennsylvaniaUSA
| | - Gabriel Osborn
- St. John's Institute of DermatologySchool of Basic & Medical BiosciencesGuy's Hospital, King's College LondonLondonUnited Kindgom
| | - Mariona Pascal
- Department of Immunology, CDB, Hospital Clinic de BarcelonaInstitut d'Investigacions Biomèdiques August Pi i Sunyer, Universitat de BarcelonaBarcelonaSpain
| | - Frank Redegeld
- Division of Pharmacology, Faculty of ScienceUtrecht Institute for Pharmaceutical Sciences, Utrecht UniversityUtrechtThe Netherlands
| | - David Rosenstreich
- Department of Internal Medicine/Allergy and Immunology, Montefiore Medical CenterAlbert Einstein College of MedicineBronxNew YorkUSA
| | - Franziska Roth‐Walter
- Comparative MedicineThe Interuniversity Messerli Research InstituteUniversity of Veterinary Medicine ViennaMedical University of ViennaUniversity of ViennaViennaAustria,Center of Pathophysiology, Infectiology and ImmunologyInstitute of Pathophysiology and Allergy Research, Medical University ViennaViennaAustria
| | - Carsten Schmidt‐Weber
- Center of Allergy & Environment (ZAUM)Technical University of Munich and Helmholtz Center Munich, German Research Center for Environmental HealthMunichGermany,German Center for Lung Research (DZL)MunichGermany
| | - Mohamed Shamji
- Immunomodulation and Tolerance Group, Imperial College London, and Allergy and Clinical ImmunologyImperial College LondonLondonUnited Kingdom
| | | | | | - Eva Untersmayr
- Center of Pathophysiology, Infectiology and ImmunologyInstitute of Pathophysiology and Allergy Research, Medical University ViennaViennaAustria
| | - Erika Jensen‐Jarolim
- Comparative MedicineThe Interuniversity Messerli Research InstituteUniversity of Veterinary Medicine ViennaMedical University of ViennaUniversity of ViennaViennaAustria,Center of Pathophysiology, Infectiology and ImmunologyInstitute of Pathophysiology and Allergy Research, Medical University ViennaViennaAustria
| | - Sophia N. Karagiannis
- St. John's Institute of DermatologySchool of Basic & Medical BiosciencesGuy's Hospital, King's College LondonLondonUnited Kindgom,Breast Cancer Now Research UnitSchool of Cancer and Pharmaceutical Sciences, King's College London, Guy's Hospital,LondonSE1 9RTUnited Kindgom
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28
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Cai S, Hu Z, Chen Y, Zhong J, Dong L. Potential roles of non-lymphocytic cells in the pathogenesis of IgG4-related disease. Front Immunol 2022; 13:940581. [PMID: 35967331 PMCID: PMC9366038 DOI: 10.3389/fimmu.2022.940581] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 07/04/2022] [Indexed: 11/18/2022] Open
Abstract
Studies have confirmed the involvement of a variety of lymphocyte subsets, including type 2 helper T lymphocytes (Th2) and IgG4+ B lymphocytes, in the pathogenesis of IgG4-related disease (IgG4-RD). Those lymphocytes contribute to the major pathogenetic features of IgG4-RD. However, they are not the only cellular components in the immunoinflammatory environment of this mysterious disease entity. Recent studies have suggested that various non-lymphocytic components, including macrophages and fibroblasts, may also play an important role in the pathogenetic process of IgG4-RD in terms of contributing to the chronic and complex progress of the disease. Therefore, the potential role of non-lymphocyte in the pathogenesis of IgG4-RD is worth discussing.
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Affiliation(s)
| | | | - Yu Chen
- *Correspondence: Lingli Dong, ; Jixin Zhong, ; Yu Chen,
| | - Jixin Zhong
- *Correspondence: Lingli Dong, ; Jixin Zhong, ; Yu Chen,
| | - Lingli Dong
- *Correspondence: Lingli Dong, ; Jixin Zhong, ; Yu Chen,
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29
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do Nascimento WRC, Nóbrega CGDO, Fernandes EDS, Santos PDA, Melo FL, Albuquerque MCPDA, de Lorena VMB, Costa VMA, Barbosa CCGS, de Souza VMO. Schistosoma mansoni infection decreases IL-33-mRNA expression and increases CXCL9 and CXCL10 production by peripheral blood cells. Med Microbiol Immunol 2022; 211:211-218. [PMID: 35819523 DOI: 10.1007/s00430-022-00745-6] [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: 06/13/2021] [Accepted: 06/19/2022] [Indexed: 10/17/2022]
Abstract
Schistosoma mansoni infections, particularly egg antigens, induce Th2-dominant granulomatous responses accompanied by remarkable immunoregulatory mechanisms that avoid intense fibrosis. Interleukin (IL)-33 is a cytokine that stimulates the early activation of Th2 responses, and its soluble ST2 receptor (sST2) avoids granulomatous response, as well as CXCL9 and CXCL10 chemokines that have antifibrotic activity. However, in schistosomiasis, these molecules have not been suitably studied. Therefore, this study aimed to measure IL-33 and sST2 RNA, cytokines, and chemokines in peripheral blood cultures from individuals living in schistosomiasis-endemic areas. Peripheral blood cells from individuals with S. mansoni (n = 34) and non-infected individuals (n = 31) were cultured under mitogen stimulation. Supernatant chemokines and cytokines were evaluated using a cytometric bead array, and IL-33 and sST2 mRNA expression was measured using qPCR. Infected individuals showed higher levels of CXCL8, CXCL9, CXCL10, IFN-γ, TNF-α, IL-6, IL-2, IL-4, and IL-10; there was a lower expression of IL-33 mRNA and similar expression of sST2mRNA in infected than non-infected individuals. In conclusion, for the first time, we demonstrated lower IL-33mRNA expression and high levels of the antifibrotic chemokines CXCL9 and CXCL10 in schistosomiasis mansoni, which could control exacerbations of the disease in individuals from endemic areas.
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Affiliation(s)
| | - Cassia Giselle de Oliveira Nóbrega
- Setor de Imunologia, Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, s/n. Cidade Universitária, Recife, PE, 50670-901, Brazil
| | - Erica de Souza Fernandes
- Setor de Imunologia, Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, s/n. Cidade Universitária, Recife, PE, 50670-901, Brazil
| | - Patrícia d'Emery Alves Santos
- Setor de Imunologia, Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, s/n. Cidade Universitária, Recife, PE, 50670-901, Brazil
| | - Fábio Lopes Melo
- Instituto Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, Brazil
| | - Mônica Camelo Pessôa de Azevedo Albuquerque
- Departamento de Medicina Tropical, Universidade Federal de Pernambuco, Recife, Brazil.,Setor de Imunologia, Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, s/n. Cidade Universitária, Recife, PE, 50670-901, Brazil
| | | | - Vláudia Maria Assis Costa
- Departamento de Medicina Tropical, Universidade Federal de Pernambuco, Recife, Brazil.,Setor de Imunologia, Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, s/n. Cidade Universitária, Recife, PE, 50670-901, Brazil
| | | | - Valdênia Maria Oliveira de Souza
- Setor de Imunologia, Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, s/n. Cidade Universitária, Recife, PE, 50670-901, Brazil. .,Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, s/n. Cidade Universitária, Recife, PE, 50670-901, Brazil.
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Wang R, Nakajima-Adachi H, Wang Y, Zhou Y, Gu W, Hiraide E, Morinaga M, Nakagawa R, Nakamura S, Takano T, Li X, Saeki M, Kaminuma O, Hiroi T, Uchida K, Motoshima H, Tanokura M, Miyakawa T, Hachimura S. Regulation of Th2 responses by Lactococcus lactis subsp. cremoris YRC3780 alleviates DNCB-induced atopic dermatitis in the mouse model. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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31
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Dobrican CT, Muntean I, Pintea I, Petricău C, Deleanu DM, Filip G. Immunological signature of chronic spontaneous urticaria (Review). Exp Ther Med 2022; 23:381. [PMID: 35495604 PMCID: PMC9019689 DOI: 10.3892/etm.2022.11309] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 11/15/2021] [Indexed: 11/05/2022] Open
Abstract
Chronic urticaria (CU) is a condition characterized by intensely pruritic, edematous, erythematous papules lasting for more than 6 weeks. Over half of the cases have concomitant swelling of deeper tissues, known as angioedema. The socio-economic burden of the disease is significant. Unfortunately, patients with severe CU, refractory to conventional treatment, have limited and expensive therapeutic options. The pathogenesis of CU is not yet completely understood. Therefore, elucidating the pathophysiological mechanisms involved would potentially identify new therapeutic targets. It has been accepted in recent years that mast cells and their activation, followed by excessive degranulation represent the key pathophysiological events in chronic spontaneous urticaria (CSU). The triggering events and the complexity of the effector mechanisms, however, remain intensely debated topics with conflicting studies. One pathogenetic mechanism incriminated in chronic spontaneous urticaria is the response mediated by the high-affinity receptor for IgE (FcεRI) expressed on mast cells. Increasing recognition of chronic spontaneous urticaria as an autoimmune disease linked to the cytokine-chemokine network imbalance resulting from alteration of innate immune response is another pathogenetic explanation. It is likely that these different pathological mechanisms are more interconnected, both acting synergistically, rather than separately, to produce the clinical expression of CU. The discovery and understanding of pathogenic mechanisms represent the premise for the development of safe and effective immunomodulators and targeted biological treatment for severe, refractory CU.
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Affiliation(s)
- Carmen-Teodora Dobrican
- Discipline of Allergology and Immunology, Department of Functional Sciences, Iuliu Hatieganu University of Medicine and Pharmacy, 400162 Cluj‑Napoca, Romania
| | - Ioana Muntean
- Discipline of Allergology and Immunology, Department of Functional Sciences, Iuliu Hatieganu University of Medicine and Pharmacy, 400162 Cluj‑Napoca, Romania
| | - Irena Pintea
- Discipline of Allergology and Immunology, Department of Functional Sciences, Iuliu Hatieganu University of Medicine and Pharmacy, 400162 Cluj‑Napoca, Romania
| | - Carina Petricău
- Discipline of Allergology and Immunology, Department of Functional Sciences, Iuliu Hatieganu University of Medicine and Pharmacy, 400162 Cluj‑Napoca, Romania
| | - Diana-Mihaela Deleanu
- Discipline of Allergology and Immunology, Department of Functional Sciences, Iuliu Hatieganu University of Medicine and Pharmacy, 400162 Cluj‑Napoca, Romania
| | - Gabriela Filip
- Discipline of Physiology, Department of Functional Sciences, Iuliu Hatieganu University of Medicine and Pharmacy, 400162 Cluj‑Napoca, Romania
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Tovo P, Monti G, Daprà V, Montanari P, Calvi C, Alliaudi C, Sardo A, Galliano I, Bergallo M. Enhanced expression of endogenous retroviruses and of TRIM28 and SETDB1 in children with food allergy. Clin Transl Allergy 2022; 12:e12124. [PMID: 35344298 PMCID: PMC8967271 DOI: 10.1002/clt2.12124] [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: 07/21/2021] [Revised: 01/19/2022] [Accepted: 01/27/2022] [Indexed: 11/20/2022] Open
Abstract
Background Human endogenous retroviruses (HERVs) represent 8% of our genome. They originate from ancestral infections and although no longer contagious they can regulate transcription of adjacent cellular genes, produce viral RNAs sensed as non‐self by pattern recognition receptors, and encode viral proteins, such as Syncytin (SYN) 1 and 2, that exhibit potent immunomodulatory properties. Based on this, HERVs have been studied and proposed as relevant cofactors in several chronic inflammatory and immune‐mediated diseases. HERV transcription is regulated by host TRIM28 and SET domain bifurcated histone lysine methyltransferase 1 (SETDB1), which in turn exert crucial regulatory functions on the host immune system. No studies explored the expression of HERVs, TRIM28, and SETDB1 in allergic patients. Methods We assessed, through a polymerase chain reaction real time Taqman amplification assay, the transcription levels of pol genes of HERV‐H, HERV‐K, HERV‐W, and of env genes of SYN1 and SYN2, as well as of TRIM28 and SETDB1 in whole blood from 32 children with IgE‐mediated food allergy, 19 with food protein‐induced enterocolitis syndrome (FPIES), and in healthy control children. Results The expression levels of pol genes of HERV‐H, ‐K, and ‐W were significantly enhanced in patients with IgE‐mediated FA or FPIES as compared to control subjects, while the mRNA concentrations of SYN1 and SYN2 were comparable in each group of children. Both TRIM28 and SETDB1 mRNA levels were significantly higher in allergic patients. Conclusions Given the influence of HERVs and of TRIM28 and SETDB1 on innate and adaptive immune responses, their transcriptional activation in children with food allergies suggest that they might play important roles in the development of these diseases.
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Affiliation(s)
- Pier‐Angelo Tovo
- Department of Pediatric Sciences and Public Health University of Turin Turin Italy
| | - Giovanna Monti
- Pediatric Allergy Unit Regina Margherita Children's Hospital Turin Italy
| | - Valentina Daprà
- Pediatric Laboratory Department of Pediatric Sciences and Public Health University of Turin Turin Italy
| | - Paola Montanari
- Department of Pediatric Sciences and Public Health University of Turin Turin Italy
- Pediatric Laboratory Department of Pediatric Sciences and Public Health University of Turin Turin Italy
| | - Cristina Calvi
- Department of Pediatric Sciences and Public Health University of Turin Turin Italy
- Pediatric Laboratory Department of Pediatric Sciences and Public Health University of Turin Turin Italy
| | - Carla Alliaudi
- Department of Pediatric Sciences and Public Health University of Turin Turin Italy
- Pediatric Laboratory Department of Pediatric Sciences and Public Health University of Turin Turin Italy
| | - Allegra Sardo
- Department of Pediatric Sciences and Public Health University of Turin Turin Italy
| | - Ilaria Galliano
- Department of Pediatric Sciences and Public Health University of Turin Turin Italy
- Pediatric Laboratory Department of Pediatric Sciences and Public Health University of Turin Turin Italy
| | - Massimiliano Bergallo
- Department of Pediatric Sciences and Public Health University of Turin Turin Italy
- Pediatric Laboratory Department of Pediatric Sciences and Public Health University of Turin Turin Italy
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Abstract
To date, much of the focus of gut-brain axis research has been on gut microbiota regulation of anxiety and stress-related behaviors. Much less attention has been directed to potential connections between gut microbiota and compulsive behavior. Here, we discuss a potential link between gut barrier dysfunction and compulsive behavior that is mediated through "type 2" rather than "type 1" inflammation. We examine connections between compulsive behavior and type 2 inflammation in Tourette syndrome, obsessive-compulsive disorder, autism, addiction, and post-traumatic stress disorder. Next, we discuss potential connections between gut barrier dysfunction, type 2 inflammation, and compulsive behavior. We posit a potential mechanism whereby gut barrier dysfunction-associated type 2 inflammation may drive compulsive behavior through histamine regulation of dopamine neurotransmission. Finally, we discuss the possibility of exploiting the greater accessibility of the gut relative to the brain in identifying targets to treat compulsive behavior disorders.
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Saliba J, Coutaud B, Makhani K, Epstein Roth N, Jackson J, Park JY, Gagnon N, Costa P, Jeyakumar T, Bury M, Beauchemin N, Mann KK, Blank V. Loss of NFE2L3 protects against inflammation-induced colorectal cancer through modulation of the tumor microenvironment. Oncogene 2022; 41:1563-1575. [PMID: 35091681 PMCID: PMC8913363 DOI: 10.1038/s41388-022-02192-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 12/16/2021] [Accepted: 01/13/2022] [Indexed: 02/07/2023]
Abstract
We investigated the role of the NFE2L3 transcription factor in inflammation-induced colorectal cancer. Our studies revealed that Nfe2l3−/− mice exhibit significantly less inflammation in the colon, reduced tumor size and numbers, and skewed localization of tumors with a more pronounced decrease of tumors in the distal colon. CIBERSORT analysis of RNA-seq data from normal and tumor tissue predicted a reduction in mast cells in Nfe2l3−/− animals, which was confirmed by toluidine blue staining. Concomitantly, the transcript levels of Il33 and Rab27a, both important regulators of mast cells, were reduced and increased, respectively, in the colorectal tumors of Nfe2l3−/− mice. Furthermore, we validated NFE2L3 binding to the regulatory sequences of the IL33 and RAB27A loci in human colorectal carcinoma cells. Using digital spatial profiling, we found that Nfe2l3−/− mice presented elevated FOXP3 and immune checkpoint markers CTLA4, TIM3, and LAG3, suggesting an increase in Treg counts. Staining for CD3 and FOXP3 confirmed a significant increase in immunosuppressive Tregs in the colon of Nfe2l3−/− animals. Also, Human Microbiome Project (HMP2) data showed that NFE2L3 transcript levels are higher in the rectum of ulcerative colitis patients. The observed changes in the tumor microenvironment provide new insights into the molecular differences regarding colon cancer sidedness. This may be exploited for the treatment of early-onset colorectal cancer as this emerging subtype primarily displays distal/left-sided tumors.
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Affiliation(s)
- James Saliba
- Lady Davis Institute for Medical Research, Montreal, Canada.,Department of Medicine, McGill University, Montreal, Quebec, Canada
| | | | - Kiran Makhani
- Lady Davis Institute for Medical Research, Montreal, Canada.,Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Noam Epstein Roth
- Lady Davis Institute for Medical Research, Montreal, Canada.,Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Jennie Jackson
- Lady Davis Institute for Medical Research, Montreal, Canada.,Life Sciences Institute and Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Joo Yeoun Park
- Lady Davis Institute for Medical Research, Montreal, Canada
| | | | - Paolo Costa
- Lady Davis Institute for Medical Research, Montreal, Canada
| | - Thiviya Jeyakumar
- Goodman Cancer Institute and Departments of Oncology, Biochemistry and Medicine, McGill University, Montreal, Quebec, Canada
| | - Marina Bury
- Lady Davis Institute for Medical Research, Montreal, Canada.,De Duve Institute, UCLouvain, Brussels, Belgium
| | - Nicole Beauchemin
- Goodman Cancer Institute and Departments of Oncology, Biochemistry and Medicine, McGill University, Montreal, Quebec, Canada
| | - Koren K Mann
- Lady Davis Institute for Medical Research, Montreal, Canada.,Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
| | - Volker Blank
- Lady Davis Institute for Medical Research, Montreal, Canada. .,Department of Medicine, McGill University, Montreal, Quebec, Canada. .,Department of Physiology, McGill University, Montreal, Quebec, Canada.
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35
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Singh H, Singh A, Saluja R. Evaluation of serum interleukin-33 and soluble suppression of tumorigenicity 2 (sST2) receptors in patients with and without periodontal disease. Indian J Dent Res 2022; 33:37-40. [PMID: 35946242 DOI: 10.4103/ijdr.ijdr_85_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Context : Interleukin-33 and its receptor soluble suppression of tumorigenicity 2. ( sST2) play an important role in inflammation and its role in periodontal disease is yet unclear. The role of both IL-33 and sST2 together in periodontal disease as biomarkers has never been studied. Aim : To assess the levels of IL-33 and sST2 in serum samples of patients with periodontitis and healthy subjects. Methods : A total of 71 subjects (30 healthy subjects and 41 patients with periodontal disease) were included in the cross-sectional study. Community Periodontal Index (CPI) was used to assess periodontal health by utilizing a mouth mirror and a CPI probe. Venous blood was collected and serum was separated. Serum levels of IL-33 and sST2 were determined by the enzyme-linked immunosorbent assay (ELISA) assay. Statistical Analysis Graph Pad Prism 5 was used for statistical analysis. Mann Whitney test was applied to compare the two groups. Results : The level of IL-33 was not found to be elevated among healthy subjects and sST2 was found elevated among patients with periodontal disease. The serum concentration of IL-33 was found at 472 ± 114 pg/ml and 282 ± 77 pg/ml among healthy subjects and patients with periodontal disease respectively. Significantly higher values of sST2 at 28 ± 2 ng/ml were found among periodontal patients as compared to healthy subjects with values of 18 ± 1 ng/ml. No significant differences were noted between mild to moderate and severe periodontitis for IL-33 and sST2 between the two groups. Conclusion This study shows alteration in serum levels of IL-33 and sST2 in periodontitis patients. IL-33 and sST2 may be potential inflammatory markers of periodontitis. Further studies are required on a large sample size for better understanding. This pilot study is the first to assess the serum levels of both IL-33 and sST2 together among patients with and without periodontal disease.
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Affiliation(s)
- Himadri Singh
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS), Bhopal, India
| | - Abhinav Singh
- Department of Dentistry, Nodal Officer - Regional Training Centre for Oral Health Promotion & Oral Health Data Bank (M.P), All India Institute of Medical Sciences (AIIMS), Bhopal, India
| | - Rohit Saluja
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS), Bibinagar, Hyderabad, India
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36
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Mai E, Chan J, Goon L, Ego BK, Bevers J, Wong T, Wong M, Corpuz R, Xi H, Wu J, Schneider K, Seshasayee D, Grimbaldeston M, Nakamura G, Indjeian VB, van Lookeren Campagne M, Loyet KM, Comps-Agrar L. Development of an ultra-sensitive human IL-33 biomarker assay for age-related macular degeneration and asthma drug development. J Transl Med 2021; 19:517. [PMID: 34930320 PMCID: PMC8686655 DOI: 10.1186/s12967-021-03189-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 12/08/2021] [Indexed: 11/21/2022] Open
Abstract
Background Over the past decade, human Interleukin 33 (hIL-33) has emerged as a key contributor to the pathogenesis of numerous inflammatory diseases. Despite the existence of several commercial hIL-33 assays spanning multiple platform technologies, their ability to provide accurate hIL-33 concentration measurements and to differentiate between active (reduced) and inactive (oxidized) hIL-33 in various matrices remains uncertain. This is especially true for lower sample volumes, matrices with low hIL-33 concentrations, and matrices with elevated levels of soluble Interleukin 1 Receptor-Like 1 (sST2), an inactive form of ST2 that competes with membrane bound ST2 for hIL-33 binding. Results We tested the performance of several commercially available hIL-33 detection assays in various human matrices and found that most of these assays lacked the sensitivity to accurately detect reduced hIL-33 at biologically relevant levels (sub-to-low pg/mL), especially in the presence of human sST2 (hsST2), and/or lacked sufficient target specificity. To address this, we developed and validated a sensitive and specific enzyme-linked immunosorbent assay (ELISA) capable of detecting reduced and total hIL-33 levels even in the presence of high concentrations of sST2. By incorporating the immuno-polymerase chain reaction (iPCR) platform, we further increased the sensitivity of this assay for the reduced form of hIL-33 by ~ 52-fold. Using this hIL-33 iPCR assay, we detected hIL-33 in postmortem human vitreous humor (VH) samples from donors with age-related macular degeneration (AMD) and found significantly increased hIL-33 levels when compared to control individuals. No statistically significant difference was observed in aqueous humor (AH) from AMD donors nor in plasma and nasosorption fluid (NF) from asthma patients compared to control individuals. Conclusions Unlike existing commercial hIL-33 assays, our hIL-33 bioassays are highly sensitive and specific and can accurately quantify hIL-33 in various human clinical matrices, including those with high levels of hsST2. Our results provide a proof of concept of the utility of these assays in clinical trials targeting the hIL-33/hST2 pathway. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-021-03189-3.
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Affiliation(s)
- Elaine Mai
- Department of Biochemical and Cellular Pharmacology, Genentech Inc., South San Francisco, CA, USA
| | - Joyce Chan
- Department of Biochemical and Cellular Pharmacology, Genentech Inc., South San Francisco, CA, USA
| | - Levina Goon
- Department of Biochemical and Cellular Pharmacology, Genentech Inc., South San Francisco, CA, USA.,Department of Biology and Compound Repository, Exelixis, Alameda, CA, USA
| | - Braeden K Ego
- Department of Biochemical and Cellular Pharmacology, Genentech Inc., South San Francisco, CA, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Jack Bevers
- Department of Antibody Engineering, Genentech Inc., South San Francisco, CA, USA
| | - Tiffany Wong
- Department of Structural Biology, Genentech Inc., South San Francisco, CA, USA
| | - Manda Wong
- Department of Structural Biology, Genentech Inc., South San Francisco, CA, USA
| | - Racquel Corpuz
- Department of Structural Biology, Genentech Inc., South San Francisco, CA, USA
| | - Hongkang Xi
- Department of Antibody Engineering, Genentech Inc., South San Francisco, CA, USA.,Department of Immunology, Genentech Inc., South San Francisco, CA, USA
| | - Jia Wu
- Department of Antibody Engineering, Genentech Inc., South San Francisco, CA, USA
| | - Kellen Schneider
- Department of Antibody Engineering, Genentech Inc., South San Francisco, CA, USA
| | - Dhaya Seshasayee
- Department of Antibody Engineering, Genentech Inc., South San Francisco, CA, USA
| | - Michele Grimbaldeston
- Department of OMNI-Biomarker Development, Genentech Inc., South San Francisco, CA, USA
| | - Gerald Nakamura
- Department of Antibody Engineering, Genentech Inc., South San Francisco, CA, USA
| | - Vahan B Indjeian
- Department of OMNI-Biomarker Development, Genentech Inc., South San Francisco, CA, USA
| | - Menno van Lookeren Campagne
- Department of Immunology, Genentech Inc., South San Francisco, CA, USA.,Department of Inflammation and Oncology, Amgen Research, Amgen Inc., South San Francisco, CA, USA
| | - Kelly M Loyet
- Department of Biochemical and Cellular Pharmacology, Genentech Inc., South San Francisco, CA, USA
| | - Laetitia Comps-Agrar
- Department of Biochemical and Cellular Pharmacology, Genentech Inc., South San Francisco, CA, USA.
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37
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Li S, Li Z, Tan T, Dai S, Wu Y, Xu F. Tanshinone IIA improves degranulation of mast cells and allergic rhinitis induced by ovalbumin by inhibiting the PLCγ1/PKC/IP3R pathway. Hum Exp Toxicol 2021; 40:S702-S710. [PMID: 34792426 DOI: 10.1177/09603271211058884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Allergic rhinitis (AR) is a common allergic inflammatory and chronic reactive disease caused by allergen-induced immunoglobulin E (IgE). Tanshinone IIA (Tan IIA) is one of the active ingredients in Salvia miltiorrhiza Bunge (Danshen) and plays a vital role in inhibiting inflammation. Thus, we hypothesized that Tan IIA has anti-allergic effects and studied the function of Tan IIA in mast cells and an AR animal model. We induced RBL-2H3 cell sensitization with monoclonal anti-2,4,6-dinitrophenyl-immunoglobulin (Ig) E/human serum albumin (DNP-IgE/HSA) and constructed an ovalbumin (OVA)-induced AR model in mice. The role of Tan IIA in AR progression was studied using the MTT assay, ELISA, western blot, toluidine blue staining, HE staining, and Alcian blue and safranin O (A&S) staining. Tan IIA treatment significantly increased IgE/HSA-induced cell viability. However, Tan IIA treatment markedly downregulated the expression levels of β-hexosaminidase, histamine, tumor necrosis factor (TNF-α), interleukin 1β (IL-1β), IL-4, and IL-5 in IgE/HSA-induced cells. Furthermore, Tan IIA improved typical symptoms in the OVA-induced AR model mice by inhibiting the phospholipase Cγ1 (PLCγ1)/protein kinase C (PKC)/IP3R pathway. Additionally, Tan IIA effectively improved the degranulation of RBL-2H3 cells and OVA-induced AR in mice. Together, these results suggest that Tan IIA may be a potential drug for the treatment of AR in the future.
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Affiliation(s)
- Shouye Li
- College of Pharmacy, 117839Hangzhou Medical College, Hangzhou, China
| | - Zheming Li
- College of Pharmacy, 117839Hangzhou Medical College, Hangzhou, China
| | - Tao Tan
- Internal Medicine Department, Zhejiang Provincial General Team Hospital of the Chinese People's Armed Police Force, Hangzhou, China
| | - Shijie Dai
- College of Pharmacy, 117839Hangzhou Medical College, Hangzhou, China
| | - Yangsheng Wu
- College of Pharmacy, 117839Hangzhou Medical College, Hangzhou, China
| | - Faying Xu
- School of Medical Imaging, 117839Hangzhou Medical College, Hangzhou, China
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38
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Huang J, Gandini MA, Chen L, M'Dahoma S, Stemkowski PL, Chung H, Muruve DA, Zamponi GW. Hyperactivity of Innate Immunity Triggers Pain via TLR2-IL-33-Mediated Neuroimmune Crosstalk. Cell Rep 2021; 33:108233. [PMID: 33027646 DOI: 10.1016/j.celrep.2020.108233] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 07/27/2020] [Accepted: 09/15/2020] [Indexed: 01/09/2023] Open
Abstract
The innate immune system responds to infections that give rise to pain. How the innate immune system interacts with the sensory nervous system and contributes to pain is poorly understood. Here we report that hyperactivity of innate immunity primes and initiates pain states via the TLR2-interleukin-33 (IL-33) axis. Toll-like receptors (TLRs) are upregulated in the complete Freund's adjuvant (CFA) pain model, and knockout of TLR2 abolishes CFA-induced pain. Selective activation of TLR2/6 triggers acute pain via upregulation of IL-33 in the hindpaw, dorsal root ganglia (DRG), and spinal cord in an NLRP3-dependent manner. The IL-33 increase further initiates priming of nociceptive neurons and pain states. Finally, blocking IL-33 receptors at the spinal level mediates analgesia during acute and chronic inflammatory pain, underscoring an important function of IL-33 in pain signaling. Collectively, our data reveal a critical role of the TLR2-IL-33 axis in innate immune activation for pain initiation and maintenance.
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Affiliation(s)
- Junting Huang
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada.
| | - Maria A Gandini
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Lina Chen
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Said M'Dahoma
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Patrick L Stemkowski
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Hyunjae Chung
- Department of Medicine, Snyder Institute for Chronic Disease, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Daniel A Muruve
- Department of Medicine, Snyder Institute for Chronic Disease, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Gerald W Zamponi
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada.
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Buelow LM, Hoji A, Tat K, Schroeder-Carter LM, Carroll DJ, Cook-Mills JM. Mechanisms for Alternaria alternata Function in the Skin During Induction of Peanut Allergy in Neonatal Mice With Skin Barrier Mutations. FRONTIERS IN ALLERGY 2021; 2:677019. [PMID: 35387035 PMCID: PMC8974772 DOI: 10.3389/falgy.2021.677019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 08/16/2021] [Indexed: 01/07/2023] Open
Abstract
Neonatal mice with heterozygous mutations in genes encoding the skin barrier proteins filaggrin and mattrin (flaky tail mice [FT+/-]) exhibit oral peanut-induced anaphylaxis after skin sensitization. As we have previously reported, sensitization in this model is achieved via skin co- exposure to the environmental allergen Alternaria alternata (Alt), peanut extract (PNE), and detergent. However, the function of Alt in initiation of peanut allergy in this model is little understood. The purpose of this study was to investigate candidate cytokines induced by Alt in the skin and determine the role of these cytokines in the development of food allergy, namely oncostatin M (Osm), amphiregulin (Areg), and IL-33. RT-qPCR analyses demonstrated that skin of FT+/- neonates expressed Il33 and Osm following Alt or Alt/PNE but not PNE exposure. By contrast, expression of Areg was induced by either Alt, PNE, or Alt/PNE sensitization in FT+/- neonates. In scRNAseq analyses, Osm, Areg, and Il33 were expressed by several cell types, including a keratinocyte cluster that was expanded in the skin of Alt/PNE-exposed FT+/- pups as compared to Alt/PNE-exposed WT pups. Areg and OSM were required for oral PNE-induced anaphylaxis since anaphylaxis was inhibited by administration of neutralizing anti-Areg or anti-OSM antibodies prior to each skin sensitization with Alt/PNE. It was then determined if intradermal injection of recombinant IL33 (rIL33), rAreg, or rOSM in the skin could substitute for Alt during skin sensitization to PNE. PNE skin sensitization with intradermal rIL33 was sufficient for oral PNE-induced anaphylaxis, whereas skin sensitization with intradermal rAreg or rOSM during skin exposure to PNE was not sufficient for anaphylaxis to oral PNE challenge. Based on these studies a pathway for IL33, Areg and OSM in Alt/PNE sensitized FT+/- skin was defined for IgE induction and anaphylaxis. Alt stimulated two pathways, an IL33 pathway and a pathway involving OSM and Areg. These two pathways acted in concert with PNE to induce food allergy in pups with skin barrier mutations.
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Kapitanov GI, Chabot JR, Narula J, Roy M, Neubert H, Palandra J, Farrokhi V, Johnson JS, Webster R, Jones HM. A Mechanistic Site-Of-Action Model: A Tool for Informing Right Target, Right Compound, And Right Dose for Therapeutic Antagonistic Antibody Programs. FRONTIERS IN BIOINFORMATICS 2021; 1:731340. [DOI: 10.3389/fbinf.2021.731340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 08/23/2021] [Indexed: 11/13/2022] Open
Abstract
Quantitative modeling is increasingly utilized in the drug discovery and development process, from the initial stages of target selection, through clinical studies. The modeling can provide guidance on three major questions–is this the right target, what are the right compound properties, and what is the right dose for moving the best possible candidate forward. In this manuscript, we present a site-of-action modeling framework which we apply to monoclonal antibodies against soluble targets. We give a comprehensive overview of how we construct the model and how we parametrize it and include several examples of how to apply this framework for answering the questions postulated above. The utilities and limitations of this approach are discussed.
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Theoharides TC. Ways to Address Perinatal Mast Cell Activation and Focal Brain Inflammation, including Response to SARS-CoV-2, in Autism Spectrum Disorder. J Pers Med 2021; 11:860. [PMID: 34575637 PMCID: PMC8465360 DOI: 10.3390/jpm11090860] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 01/08/2023] Open
Abstract
The prevalence of autism spectrum disorder (ASD) continues to increase, but no distinct pathogenesis or effective treatment are known yet. The presence of many comorbidities further complicates matters, making a personalized approach necessary. An increasing number of reports indicate that inflammation of the brain leads to neurodegenerative changes, especially during perinatal life, "short-circuiting the electrical system" in the amygdala that is essential for our ability to feel emotions, but also regulates fear. Inflammation of the brain can result from the stimulation of mast cells-found in all tissues including the brain-by neuropeptides, stress, toxins, and viruses such as SARS-CoV-2, leading to the activation of microglia. These resident brain defenders then release even more inflammatory molecules and stop "pruning" nerve connections, disrupting neuronal connectivity, lowering the fear threshold, and derailing the expression of emotions, as seen in ASD. Many epidemiological studies have reported a strong association between ASD and atopic dermatitis (eczema), asthma, and food allergies/intolerance, all of which involve activated mast cells. Mast cells can be triggered by allergens, neuropeptides, stress, and toxins, leading to disruption of the blood-brain barrier (BBB) and activation of microglia. Moreover, many epidemiological studies have reported a strong association between stress and atopic dermatitis (eczema) during gestation, which involves activated mast cells. Both mast cells and microglia can also be activated by SARS-CoV-2 in affected mothers during pregnancy. We showed increased expression of the proinflammatory cytokine IL-18 and its receptor, but decreased expression of the anti-inflammatory cytokine IL-38 and its receptor IL-36R, only in the amygdala of deceased children with ASD. We further showed that the natural flavonoid luteolin is a potent inhibitor of the activation of both mast cells and microglia, but also blocks SARS-CoV-2 binding to its receptor angiotensin-converting enzyme 2 (ACE2). A treatment approach should be tailored to each individual patient and should address hyperactivity/stress, allergies, or food intolerance, with the introduction of natural molecules or drugs to inhibit mast cells and microglia, such as liposomal luteolin.
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Affiliation(s)
- Theoharis C Theoharides
- Laboratory of Molecular Immunopharmacology and Drug Discovery, Department of Immunology, Tufts University School of Medicine, 136 Harrison Avenue, Suite 304, Boston, MA 02111, USA
- School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, MA 02111, USA
- Department of Internal Medicine, Tufts University School of Medicine and Tufts Medical Center, Boston, MA 02111, USA
- Department of Psychiatry, Tufts University School of Medicine and Tufts Medical Center, Boston, MA 02111, USA
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Che DN, Shin JY, Kim HR, Cho BO, Kang HJ, Oh H, Kim YS, Jang SI. Citric acid and enzyme-assisted modification of flavonoids from celery (Apium graveolens) extract and their anti-inflammatory activity in HMC-1.2 cells. J Food Biochem 2021; 45:e13774. [PMID: 34142378 DOI: 10.1111/jfbc.13774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 04/22/2021] [Accepted: 04/24/2021] [Indexed: 11/28/2022]
Abstract
Apium graveolens (celery) of the family Apiaceae contains bioactive compounds including luteolin and apigenin. The purpose of this study was to increase the extraction yield of apigenin and luteolin in celery extract using green technology and to evaluate their biological activities. The results showed that CA and β-glucosidase-assisted celery extraction transformed apiin in the celery to apigenin with an increase in luteolin concentration. The CA and β-glucosidase-treated celery extract (CAGE) improved the anti-inflammatory properties of celery extract by inhibiting the expression and production of inflammatory cytokines (IL-6, IL-8, IL-31, and TNF-α) in IL-33-stimulated mast cells (HMC-1.2 cells). Their mechanism of action was tied to the inhibition of ERK, JNK, IKKα, IκBα, and NF-κB activation by CAGE in the stimulated cells. In conclusion, CA and enzyme treatment can be considered as a useful biotechnology tool for the improvement of bioactive compounds in celery and hence improve on their bioactivity. PRACTICAL APPLICATIONS: Apium graveolens commonly called celery is an edible agricultural product cultivated throughout the world and known as a "superfood." Celery contains bioactive compounds including apigenin and luteolin that contribute to their described biological activities. However, extracting celery using normal extraction procedures such as hot water and ethanol methods yields only a small amount of apigenin and luteolin. In the present study, we introduced an eco-friendly method using citric and β-glucosidase to obtain apigenin and luteolin-rich celery extract with improved anti-inflammatory activities. The present work will spark studies on the conversion of less biologically active compounds in functional food materials to more active compounds using CA and β-glucosidase, and the development of functional food with specifically enriched bioactive substances at the industrial levels.
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Affiliation(s)
- Denis Nchang Che
- Department of Health Management, Jeonju University, Jeonju-si, Republic of Korea.,Department of Food Science and Technology, Chonbuk National University, Jeonju-si, Republic of Korea
| | - Jae Young Shin
- Department of Health Management, Jeonju University, Jeonju-si, Republic of Korea.,Department of Food Science and Technology, Chonbuk National University, Jeonju-si, Republic of Korea
| | - Ha Rim Kim
- Department of Food Science and Technology, Chonbuk National University, Jeonju-si, Republic of Korea
| | - Byoung Ok Cho
- Department of Health Management, Jeonju University, Jeonju-si, Republic of Korea
| | - Hyun Ju Kang
- Department of Health Management, Jeonju University, Jeonju-si, Republic of Korea
| | - Hyeonhwa Oh
- Department of Food Science and Technology, Chonbuk National University, Jeonju-si, Republic of Korea
| | - Young-Soo Kim
- Department of Food Science and Technology, Chonbuk National University, Jeonju-si, Republic of Korea
| | - Seon Il Jang
- Department of Health Management, Jeonju University, Jeonju-si, Republic of Korea
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Kammala AK, Yang C, Panettieri RA, Das R, Subramanian H. G Protein-Coupled Receptor Kinase 2 (GRK2) Regulates T Cell Response in a Murine Model of House Dust Mite-Induced Asthma. FRONTIERS IN ALLERGY 2021; 2:656886. [PMID: 35386975 PMCID: PMC8974720 DOI: 10.3389/falgy.2021.656886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/21/2021] [Indexed: 11/19/2022] Open
Abstract
G protein-coupled receptor kinase 2 (GRK2) is an adapter protein that modulates G protein-coupled receptor (GPCR) signaling. It also regulates the functions and activity of other intracellular proteins in many cell types. Accordingly, GRK2 is thought to contribute to disease progression by a variety of mechanisms related to its multifunctional roles. Indeed, GRK2 levels are enhanced in patient samples as well as in preclinical models of several diseases. We have previously shown that GRK2 regulates mast cell functions, and thereby contributes to exacerbated inflammation during allergic reactions. In the current study, we observed that GRK2 levels are enhanced in the lungs of human asthma patients and in mice sensitized to house dust mite extract (HDME) allergen. Consistent with these findings, interleukin (IL)-4 and IL-13 levels were reduced in the lungs of GRK2+/- mice in a HMDE mouse model of asthma. Because Th2 cells are the major source of these cytokines during asthma, we determined the role of GRK2 in regulating T cell-specific responses in our HMDE mouse model. We observed a significant reduction of airway hyperresponsiveness (AHR), lung eosinophil and lymphocyte counts, serum IgE, Th2 cytokines (IL-4 and IL-13), goblet cell hyperplasia and mucus production in mice that had reduced GRK2 expression specifically in T cells. Collectively, our studies reveal an important role for GRK2 in regulating T cell response during asthma pathogenesis and further elucidation of the mechanisms through which GRK2 modulates airway inflammation will lead to the development of new therapeutic strategies for asthma.
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Affiliation(s)
- Ananth K. Kammala
- Department of Physiology, Michigan State University, East Lansing, MI, United States
| | - Canchai Yang
- Department of Physiology, Michigan State University, East Lansing, MI, United States
| | - Reynold A. Panettieri
- Rutgers Institute for Translational Medicine and Science, New Brunswick, NJ, United States
| | - Rupali Das
- Department of Physiology, Michigan State University, East Lansing, MI, United States
| | - Hariharan Subramanian
- Department of Physiology, Michigan State University, East Lansing, MI, United States
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Franke K, Wang Z, Zuberbier T, Babina M. Cytokines Stimulated by IL-33 in Human Skin Mast Cells: Involvement of NF-κB and p38 at Distinct Levels and Potent Co-Operation with FcεRI and MRGPRX2. Int J Mol Sci 2021; 22:ijms22073580. [PMID: 33808264 PMCID: PMC8036466 DOI: 10.3390/ijms22073580] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/26/2021] [Accepted: 03/28/2021] [Indexed: 12/13/2022] Open
Abstract
The IL-1 family cytokine IL-33 activates and re-shapes mast cells (MCs), but whether and by what mechanisms it elicits cytokines in MCs from human skin remains poorly understood. The current study found that IL-33 activates CCL1, CCL2, IL-5, IL-8, IL-13, and TNF-α, while IL-1β, IL-6, IL-31, and VEGFA remain unaffected in cutaneous MCs, highlighting that each MC subset responds to IL-33 with a unique cytokine profile. Mechanistically, IL-33 induced the rapid (1–2 min) and durable (2 h) phosphorylation of p38, whereas the phosphorylation of JNK was weaker and more transient. Moreover, the NF-κB pathway was potently activated, as revealed by IκB degradation, increased nuclear abundance of p50/p65, and vigorous phosphorylation of p65. The activation of NF-κB occurred independently of p38 or JNK. The induced transcription of the cytokines selected for further study (CCL1, CCL2, IL-8, TNF-α) was abolished by interference with NF-κB, while p38/JNK had only some cytokine-selective effects. Surprisingly, at the level of the secreted protein products, p38 was nearly as effective as NF-κB for all entities, suggesting post-transcriptional involvement. IL-33 did not only instruct skin MCs to produce selected cytokines, but it also efficiently co-operated with the allergic and pseudo-allergic/neurogenic activation networks in the production of IL-8, TNF-α, CCL1, and CCL2. Synergism was more pronounced at the protein than at the mRNA level and appeared stronger for MRGPRX2 ligands than for FcεRI. Our results underscore the pro-inflammatory nature of an acute IL-33 stimulus and imply that especially in combination with allergens or MRGPRX2 agonists, IL-33 will efficiently amplify skin inflammation and thereby aggravate inflammatory dermatoses.
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Affiliation(s)
- Kristin Franke
- Department of Dermatology, Venerology and Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany; (K.F.); (Z.W.); (T.Z.)
| | - Zhao Wang
- Department of Dermatology, Venerology and Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany; (K.F.); (Z.W.); (T.Z.)
- Department of Dermatology, The Second Affiliated Hospital, Northwest Hospital, Xi’an Jiaotong University, Xi’an 710004, China
| | - Torsten Zuberbier
- Department of Dermatology, Venerology and Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany; (K.F.); (Z.W.); (T.Z.)
| | - Magda Babina
- Department of Dermatology, Venerology and Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany; (K.F.); (Z.W.); (T.Z.)
- Correspondence: ; Tel.: +49-175-1649-539; Fax: +49-30-45051-8900
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Theoharides TC, Cholevas C, Polyzoidis K, Politis A. Long-COVID syndrome-associated brain fog and chemofog: Luteolin to the rescue. Biofactors 2021; 47:232-241. [PMID: 33847020 PMCID: PMC8250989 DOI: 10.1002/biof.1726] [Citation(s) in RCA: 109] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 03/01/2021] [Indexed: 01/08/2023]
Abstract
COVID-19 leads to severe respiratory problems, but also to long-COVID syndrome associated primarily with cognitive dysfunction and fatigue. Long-COVID syndrome symptoms, especially brain fog, are similar to those experienced by patients undertaking or following chemotherapy for cancer (chemofog or chemobrain), as well in patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) or mast cell activation syndrome (MCAS). The pathogenesis of brain fog in these illnesses is presently unknown but may involve neuroinflammation via mast cells stimulated by pathogenic and stress stimuli to release mediators that activate microglia and lead to inflammation in the hypothalamus. These processes could be mitigated by phytosomal formulation (in olive pomace oil) of the natural flavonoid luteolin.
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Affiliation(s)
- Theoharis C. Theoharides
- Laboratory of Molecular Immunopharmacology and Drug Discovery, Department of ImmunologyTufts University School of MedicineBostonMassachusettsUSA
- School of Graduate Biomedical SciencesTufts University School of MedicineBostonMassachusettsUSA
- Department of Internal MedicineTufts University School of Medicine and Tufts Medical CenterBostonMassachusettsUSA
- Department of PsychiatryTufts University School of Medicine and Tufts Medical CenterBostonMassachusettsUSA
- BrainGateThessalonikiGreece
| | | | | | - Antonios Politis
- First Department of PsychiatryEginition Hospital, National and Kapodistrian UniversityAthensGreece
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Yoshida K, Takabayashi T, Kaneko A, Takiyama M, Sakashita M, Imoto Y, Kato Y, Narita N, Fujieda S. Baicalin suppresses type 2 immunity through breaking off the interplay between mast cell and airway epithelial cell. JOURNAL OF ETHNOPHARMACOLOGY 2021; 267:113492. [PMID: 33091489 DOI: 10.1016/j.jep.2020.113492] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 10/12/2020] [Accepted: 10/16/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The traditional Japanese herbal medicine Shin'iseihaito was reported to ameliorate the airway type 2 inflammatory response in clinical and experimental studies. Airway type 2 inflammatory diseases, including bronchial asthma and eosinophilic chronic rhinosinusitis (ECRS), often coexist and interact with each other. However, it is still unclear how Shin'iseihaito exerts its pharmacological effects on cells involved in airway mucosa. AIM OF THE STUDY This study aims to examine the direct effect of baicalin, a representative bioactive compound of Shin'iseihaito, on type 2 immune responses in human airway epithelial cells and mast cells. MATERIAL AND METHODS We measured the plasma pharmacokinetics of flavonoids derived from Shin'iseihaito and investigated the effects of baicalin on type 2 immune responses in human airway epithelial cells and human mast cells. RESULTS Baicalin, wogonin, and wogonoside were detected in the plasma. The maximum plasma concentration of baicalin was highest at 1610 ng/ml (3.6 μM). In the normal human bronchial epithelial cells treated with baicalin, with or without stimulation by IFN-γ, the IL-33 expression was significantly downregulated. However, baicalin treatment did not affect the levels of thymic stromal lymphopoietin and IL-25. We noted that IL-33-dependent expression of tryptase mRNA in mast cells was significantly inhibited by baicalin. Also, the expression of IL-5 in mast cells enhanced by stimulation with TSLP plus IL-1β was significantly downregulated by baicalin treatment. Moreover, the enhancement of IL-13 expression in mast cells by IL-33 simulation was also significantly inhibited by baicalin. CONCLUSIONS Our results prove that by breaking off the vicious circle of mast cells and airway epithelial cells, baicalin may be an effective alternative therapeutic option for the treatment of type 2 inflammatory diseases, such as ECRS and comorbid asthma.
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Affiliation(s)
- Kanako Yoshida
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, University of Fukui, 23 Shimoaizuki, Matsuoka, Yoshida, Fukui, Japan
| | - Tetsuji Takabayashi
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, University of Fukui, 23 Shimoaizuki, Matsuoka, Yoshida, Fukui, Japan.
| | - Atsushi Kaneko
- Tsumura Kampo Research Laboratories, Tsumura & Co., 3586 Yoshiwara, Ami- Machi, Inashiki-gun, Ibaraki, Japan
| | - Mikina Takiyama
- Tsumura Kampo Research Laboratories, Tsumura & Co., 3586 Yoshiwara, Ami- Machi, Inashiki-gun, Ibaraki, Japan
| | - Masafumi Sakashita
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, University of Fukui, 23 Shimoaizuki, Matsuoka, Yoshida, Fukui, Japan
| | - Yoshimasa Imoto
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, University of Fukui, 23 Shimoaizuki, Matsuoka, Yoshida, Fukui, Japan
| | - Yukinori Kato
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, University of Fukui, 23 Shimoaizuki, Matsuoka, Yoshida, Fukui, Japan
| | - Norihiko Narita
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, University of Fukui, 23 Shimoaizuki, Matsuoka, Yoshida, Fukui, Japan
| | - Shigeharu Fujieda
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, University of Fukui, 23 Shimoaizuki, Matsuoka, Yoshida, Fukui, Japan
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47
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Gómez RM, Croce VH, Zernotti ME, Muiño JC. Active smoking effect in allergic rhinitis. World Allergy Organ J 2021; 14:100504. [PMID: 33510834 PMCID: PMC7816023 DOI: 10.1016/j.waojou.2020.100504] [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: 09/01/2020] [Revised: 12/17/2020] [Accepted: 12/21/2020] [Indexed: 11/03/2022] Open
Abstract
Background Tobacco smoke has been described as causing increased prevalence of rhinitis symptoms and decreased atopy. Furthermore, these nasal symptoms and quality of life in smokers with Allergic Rhinitis (AR) were not significantly different to non-smokers. As a result of this duality, a comparison study between the quality of life and inflammatory markers of atopy among active smokers and non-smokers having AR was put forward. Material and methods Cross-sectional study in adult smokers and non-smokers, with a clinical diagnosis of AR and positive Skin Prick Test (SPT). Smoking status was confirmed by salivary cotinine measurements. Functional respiratory evaluation was performed, and quality of life between groups was compared using Mini-RQLQ questionnaire. Immunological markers in serum and nasal washes (IgE, IL-4, IL 5, IL 13, IL 17, IL 33) were evaluated, while samples from a third group of passive smokers was incorporated for serological comparison exclusively. The statistical analysis included Student T test, x2, Mann Whitney U (Anova 2-way), and Kruskal Wallis for 3 groups analysis. Values of P < 0.05 were considered significant. Results Twenty-two patients per group with similar demographics and allergen sensitivity were studied. Regarding inflammatory markers, a reduction of IL 33 in the serum of smokers (P < 0.001) was the only statistically significant different parameter revealed, showing a remarkable trend in nasal lavage. Salivary cotinine levels were absolutely different (P < 0.0001), but pulmonary function evaluations were not statistically significant after multiple adjusting. There were no significant differences in quality of life parameters. Conclusions In our study of AR, active smokers do not demonstrate impaired nasal related quality of life or impact on atopic inflammatory parameters, compared to non-smokers. Reduced levels of IL33 could explain a lack of symptoms alerting smokers of the harmful consequences of smoking.
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Affiliation(s)
| | - Víctor Hugo Croce
- Pediatric Allergy Dept., Instituto Modelo Cardiología, Córdoba, Argentina
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48
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Li Y, Gao J, Kamran M, Harmacek L, Danhorn T, Leach SM, O'Connor BP, Hagman JR, Huang H. GATA2 regulates mast cell identity and responsiveness to antigenic stimulation by promoting chromatin remodeling at super-enhancers. Nat Commun 2021; 12:494. [PMID: 33479210 PMCID: PMC7820599 DOI: 10.1038/s41467-020-20766-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 12/14/2020] [Indexed: 01/29/2023] Open
Abstract
Mast cells are critical effectors of allergic inflammation and protection against parasitic infections. We previously demonstrated that transcription factors GATA2 and MITF are the mast cell lineage-determining factors. However, it is unclear whether these lineage-determining factors regulate chromatin accessibility at mast cell enhancer regions. In this study, we demonstrate that GATA2 promotes chromatin accessibility at the super-enhancers of mast cell identity genes and primes both typical and super-enhancers at genes that respond to antigenic stimulation. We find that the number and densities of GATA2- but not MITF-bound sites at the super-enhancers are several folds higher than that at the typical enhancers. Our studies reveal that GATA2 promotes robust gene transcription to maintain mast cell identity and respond to antigenic stimulation by binding to super-enhancer regions with dense GATA2 binding sites available at key mast cell genes.
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Affiliation(s)
- Yapeng Li
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, 80206, USA
| | - Junfeng Gao
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, 80206, USA
| | - Mohammad Kamran
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, 80206, USA
| | - Laura Harmacek
- Center for Genes, Environment and Health, National Jewish Health, Denver, CO, 80206, USA
| | - Thomas Danhorn
- Center for Genes, Environment and Health, National Jewish Health, Denver, CO, 80206, USA
| | - Sonia M Leach
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, 80206, USA
- Center for Genes, Environment and Health, National Jewish Health, Denver, CO, 80206, USA
| | - Brian P O'Connor
- Center for Genes, Environment and Health, National Jewish Health, Denver, CO, 80206, USA
| | - James R Hagman
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, 80206, USA
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Hua Huang
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, 80206, USA.
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.
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Espinosa-Riquer ZP, Segura-Villalobos D, Ramírez-Moreno IG, Pérez Rodríguez MJ, Lamas M, Gonzalez-Espinosa C. Signal Transduction Pathways Activated by Innate Immunity in Mast Cells: Translating Sensing of Changes into Specific Responses. Cells 2020; 9:E2411. [PMID: 33158024 PMCID: PMC7693401 DOI: 10.3390/cells9112411] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/21/2020] [Accepted: 10/28/2020] [Indexed: 12/17/2022] Open
Abstract
Mast cells (MCs) constitute an essential cell lineage that participates in innate and adaptive immune responses and whose phenotype and function are influenced by tissue-specific conditions. Their mechanisms of activation in type I hypersensitivity reactions have been the subject of multiple studies, but the signaling pathways behind their activation by innate immunity stimuli are not so well described. Here, we review the recent evidence regarding the main molecular elements and signaling pathways connecting the innate immune receptors and hypoxic microenvironment to cytokine synthesis and the secretion of soluble or exosome-contained mediators in this cell type. When known, the positive and negative control mechanisms of those pathways are presented, together with their possible implications for the understanding of mast cell-driven chronic inflammation. Finally, we discuss the relevance of the knowledge about signaling in this cell type in the recognition of MCs as central elements on innate immunity, whose remarkable plasticity converts them in sensors of micro-environmental discontinuities and controllers of tissue homeostasis.
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Affiliation(s)
| | | | | | | | | | - Claudia Gonzalez-Espinosa
- Departamento de Farmacobiología, Centro de Investigación y de Estudios Avanzados (Cinvestav), Unidad Sede Sur. Calzada de los Tenorios No. 235, Col. Granjas Coapa, Mexico City 14330, Mexico; (Z.P.E.-R.); (D.S.-V.); (I.G.R.-M.); (M.J.P.R.); (M.L.)
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50
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Falduto GH, Pfeiffer A, Luker A, Metcalfe DD, Olivera A. Emerging mechanisms contributing to mast cell-mediated pathophysiology with therapeutic implications. Pharmacol Ther 2020; 220:107718. [PMID: 33130192 DOI: 10.1016/j.pharmthera.2020.107718] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 10/26/2020] [Indexed: 02/07/2023]
Abstract
Mast cells are tissue-resident immune cells that play key roles in the initiation and perpetuation of allergic inflammation, usually through IgE-mediated mechanisms. Mast cells are, however, evolutionary ancient immune cells that can be traced back to urochordates and before the emergence of IgE antibodies, suggesting their involvement in antibody-independent biological functions, many of which are still being characterized. Herein, we summarize recent advances in understanding the roles of mast cells in health and disease, partly through the study of emerging non-IgE receptors such as the Mas-related G protein-coupled receptor X2, implicated in pseudo-allergic reactions as well as in innate defense and neuronal sensing; the mechano-sensing adhesion G protein-coupled receptor E2, variants of which are associated with familial vibratory urticaria; and purinergic receptors, which orchestrate tissue damage responses similarly to the IL-33 receptor. Recent evidence also points toward novel mechanisms that contribute to mast cell-mediated pathophysiology. Thus, in addition to releasing preformed mediators contained in granules and synthesizing mediators de novo, mast cells also secrete extracellular vesicles, which convey biological functions. Understanding their release, composition and uptake within a variety of clinical conditions will contribute to the understanding of disease specific pathology and likely lead the way to novel therapeutic approaches. We also discuss recent advances in the development of therapies targeting mast cell activity, including the ligation of inhibitory ITIM-containing receptors, and other strategies that suppress mast cells or responses to mediators for the management of mast cell-related diseases.
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Affiliation(s)
- Guido H Falduto
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Annika Pfeiffer
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Andrea Luker
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Dean D Metcalfe
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Ana Olivera
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
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