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Liu Z, Fan Z, Liu J, Wang J, Xu M, Li X, Xu Y, Lu Y, Han C, Zhang Z. Melittin-Carrying Nanoparticle Suppress T Cell-Driven Immunity in a Murine Allergic Dermatitis Model. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2204184. [PMID: 36638280 PMCID: PMC9982551 DOI: 10.1002/advs.202204184] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 11/24/2022] [Indexed: 06/17/2023]
Abstract
Allergic contact dermatitis (ACD) and atopic dermatitis (AD) are the most common human skin disorders. Although corticosteroids have been widely used to treat ACD and AD, the side effects of corticosteroids encourage researchers to explore new immunoregulatory treatments. Here, an immunomodulatory approach based on lipid nanoparticles carrying α-helical configurational melittin (α-melittin-NP) is developed to overcome T cell-mediated inflammatory reactions in an oxazolone (OXA)-induced contact hypersensitivity mouse model and OXA-induced AD-like mouse model. Intradermal injection of low-dose α-melittin-NPs prevents the skin damage caused by melittin administration alone and efficiently targeted lymph nodes. Importantly, melittin and α-melittin-NPs restrain RelB activity in dendritic cells (DCs) and further suppresses dendritic cell activation and maturation in lymph nodes. Furthermore, low-dose α-melittin-NPs leads to relief of antigen recognition-induced effector T cell arrest in the dermis and inhibited allergen-specific T cell proliferation and activation. Significantly, this approach successfully controls Th1-type cytokine release in the ACD model and restricts Th2-type cytokine and IgE release in the AD-like model. Overall, intradermal delivery of low-dose α-melittin-NPs efficiently elicits immunosuppression against T cell-mediated immune reactions, providing a promising therapeutic strategy for treating skin disorders not restricted to the lesion region.
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Affiliation(s)
- Zheng Liu
- Britton Chance Center and MOE Key Laboratory for Biomedical PhotonicsWuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhanHubei430074China
| | - Zhan Fan
- Britton Chance Center and MOE Key Laboratory for Biomedical PhotonicsWuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhanHubei430074China
| | - Jinxin Liu
- Britton Chance Center and MOE Key Laboratory for Biomedical PhotonicsWuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhanHubei430074China
| | - Jialu Wang
- Britton Chance Center and MOE Key Laboratory for Biomedical PhotonicsWuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhanHubei430074China
| | - Mengli Xu
- Britton Chance Center and MOE Key Laboratory for Biomedical PhotonicsWuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhanHubei430074China
| | - Xinlin Li
- Britton Chance Center and MOE Key Laboratory for Biomedical PhotonicsWuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhanHubei430074China
| | - Yilun Xu
- School of Biomedical EngineeringHainan UniversityHaikouHainan570228China
| | - Yafang Lu
- Britton Chance Center and MOE Key Laboratory for Biomedical PhotonicsWuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhanHubei430074China
| | - Chenlu Han
- Britton Chance Center and MOE Key Laboratory for Biomedical PhotonicsWuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhanHubei430074China
| | - Zhihong Zhang
- Britton Chance Center and MOE Key Laboratory for Biomedical PhotonicsWuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhanHubei430074China
- School of Biomedical EngineeringHainan UniversityHaikouHainan570228China
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Mohana Karthikeyan S, Nikisha GN. Efficacy and Safety of Diethylcarbamazine in Treatment of Allergic Rhinitis: A Double Blind Randomised Controlled Trial. Indian J Otolaryngol Head Neck Surg 2022; 74:1169-1177. [PMID: 36452711 PMCID: PMC9702384 DOI: 10.1007/s12070-020-02249-2] [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: 10/02/2020] [Accepted: 10/24/2020] [Indexed: 10/23/2022] Open
Abstract
There are many evidences showing diethylcarbamazine as a potential drug for the treatment of allergic rhinitis. This study evaluated the effectiveness of diethylcarbamazine in the treatment of allergic rhinitis and compared it with montelukast and levocetirizine. This parallel double-blind randomized clinical trial was done in allergic rhinitis patients. Seven hundred and twelve participants who met the inclusion criteria and provided informed written consent were randomized and divided into 2 equal groups. Diethylcarbamazine 300 mg/day orally in divided doses was given to group A, and montelukast 10 mg and levocetirizine 5 mg/day orally at night for 21 days was given to group B. Primary outcomes were the change in symptoms, absolute eosinophil count, serum total IgE, phadiatop and response in skin prick from baseline to 21 days and 3 months after treatment. Secondary outcome was to compare it with montelukast and levocetirizine. The mean (SD) age of the patients was 33 (10.6) years, with 374 (52.5%) males and 338 (47.5%) females. There was statistically significant improvement in all the parameters in both groups. Improvement was better with diethylcarbamazine compared to montelukast and levocetirizine and the effects were sustained for 3 months in diethylcarbamazine group. The findings suggest that diethylcarbamazine is effective in the treatment of allergic rhinitis. It gives better control and is cost-effective than montelukast and levocetirizine. Trial Registration: https://www.ctri.nic.in Identifier: CTRI/2020/03/024145 registered on 20-03-2020.
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Affiliation(s)
- S. Mohana Karthikeyan
- Department of ENT and Head and Neck Surgery, Karpaga Vinayaka Institute of Medical Sciences and Research Center, Chinna Kolambakkam, Madurantagam, Tamil Nadu 603308 India
| | - G. N. Nikisha
- Department of ENT and Head and Neck Surgery, Karpaga Vinayaka Institute of Medical Sciences and Research Center, Chinna Kolambakkam, Madurantagam, Tamil Nadu 603308 India
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3
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Zarif A. Advances in Food Allergy Treatment. THE YALE JOURNAL OF BIOLOGY AND MEDICINE 2020; 93:749-758. [PMID: 33380936 PMCID: PMC7757061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Food allergies represent life-threatening diseases which are increasing in prevalence with no definitive treatments currently in place. Current treatments are no more than preventative avoidance and symptom management. Research within the field has focused on therapeutic developments to modify the immune response in allergen-specific and non-specific methods. This review of the advances made in treatments intends to cover methods such as oral immunotherapy, modified food protein vaccines as well as the use of alternative medicine. Thus, this review aims to inform and further extend discussion surrounding the potential clinical applications as well as novel routes for further research into an, as of yet, unsolved question.
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Affiliation(s)
- Azmaeen Zarif
- To whom all correspondence should be addressed:
Azmaeen Zarif, Gonville & Caius College, University of Cambridge, Trinity
Street, Cambridge, CB2 1TA, UK; Tel: +44 796 191 9016; ;
ORCID iD: https://orcid.org/0000-0002-1837-4460
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4
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Huston DP. Unneutral neutrophils in patients with late-phase allergic reactions. J Allergy Clin Immunol 2019; 144:46-48. [PMID: 30959061 DOI: 10.1016/j.jaci.2019.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 03/27/2019] [Accepted: 03/29/2019] [Indexed: 11/26/2022]
Affiliation(s)
- David P Huston
- Clinical Science and Translational Research Institute, Texas A&M University Health Science Center College of Medicine, and the Immunology Center at Houston Methodist Hospital and Research Institute, Houston, Tex.
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5
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Guttman-Yassky E, Zhou L, Krueger JG. The skin as an immune organ: Tolerance versus effector responses and applications to food allergy and hypersensitivity reactions. J Allergy Clin Immunol 2019; 144:362-374. [PMID: 30954522 DOI: 10.1016/j.jaci.2019.03.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 02/22/2019] [Accepted: 03/27/2019] [Indexed: 01/06/2023]
Abstract
Skin is replete with immunocompetent cells that modulate signaling pathways to maintain a salubrious immunogenic/tolerogenic balance. This fertile immune environment plays a significant role in the development of allergic responses and sensitivities, but the mechanisms underlying these pathways have been underappreciated and underused with respect to developing therapeutics. Among the complex repertoire of cells that promote tolerogenic pathways in the periphery, 2 key classes include dendritic cells and regulatory T (Treg) cells. Immature dendritic cells are the first line of defense, patrolling the periphery, sampling antigens, and secreting cytokines that suppress immune cells and promote the survival of Treg cells. Skin-homing Treg cells also play a critical role in mitigating the reactivity of immune cells, secreting high levels of cytokines that promote tolerance. Therapeutic approaches that capitalize on our knowledge of the rich cellular and molecular environment are emerging and show great promise. We will discuss the advantages and challenges of 5 such strategies and how these therapies might mitigate the atopic march by facilitating tolerance. We conclude that skin is a multifaceted structure that provides a fertile ground for therapeutic discovery. Accordingly, ongoing work in this domain will no doubt continue to deliver exciting progress for improved health outcomes.
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Affiliation(s)
- Emma Guttman-Yassky
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai Medical Center, New York, NY.
| | - Lisa Zhou
- Columbia University Medical Center, New York, NY
| | - James G Krueger
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, NY
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Oliver ET, Chichester K, Devine K, Sterba PM, Wegner C, Vonakis BM, Saini SS. Effects of an Oral CRTh2 Antagonist (AZD1981) on Eosinophil Activity and Symptoms in Chronic Spontaneous Urticaria. Int Arch Allergy Immunol 2019; 179:21-30. [PMID: 30879003 DOI: 10.1159/000496162] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 12/11/2018] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Approximately 50% of patients with chronic spontaneous urticaria (CSU) experience symptoms that are not fully controlled by antihistamines, indicating an unmet clinical need. OBJECTIVE To evaluate the effects of the selective CRTh2 antagonist AZD1981 on symptoms and targeted leukocytes in adults with persistent CSU despite treatment with H1-antihistamines. METHODS We performed a single-center, randomized, placebo-controlled study involving adult CSU subjects with symptoms despite daily antihistamines. The subjects underwent a 2-week placebo run-in and 4 weeks of double-blinded therapy with either AZD1981 40 mg TID or placebo, followed by a 2-week placebo washout. The primary objective was to assess the effect of AZD1981 on CSU signs and symptoms. Secondary objectives included the effects of AZD1981 on prostaglandin D2 (PGD2)-induced eosinophil shape change, circulating leukocyte subsets, CRTh2 expression on blood leukocytes, and total blood leukocyte histamine content. RESULTS Twenty-eight subjects were randomized to AZD1981 or placebo, with 26 subjects completing the study. The urticaria activity scores declined during the treatment phase in both groups, and they were significantly reduced in the AZD1981 group at the end of washout. AZD1981 treatment increased circulating eosinophils and significantly impaired PGD2-mediated eosinophil shape change. CRTh2 surface expression rose significantly on blood basophils during active treatment. No serious adverse events were observed. CONCLUSIONS This is the first study to examine the efficacy of a CRTh2 antagonist in antihistamine-refractory CSU. AZD1981 treatment was well tolerated, effectively inhibited PGD2-mediated eosinophil shape change, shifted numbers of circulating eosinophils, and reduced weekly itch scores more than hives during treatment and into washout. Further studies are needed to determine whether inhibition of the PGD2/CRTh2 pathway will be an -effective treatment for CSU.
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Affiliation(s)
- Eric Tyrell Oliver
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA,
| | - Kris Chichester
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Kelly Devine
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Patricia Meghan Sterba
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Craig Wegner
- Scientific Partnering and Alliances, IMED Biotech Unit, AstraZeneca, Boston, Massachusetts, USA
| | - Becky Marie Vonakis
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Sarbjit Singh Saini
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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7
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Valenta R, Karaulov A, Niederberger V, Gattinger P, van Hage M, Flicker S, Linhart B, Campana R, Focke-Tejkl M, Curin M, Eckl-Dorna J, Lupinek C, Resch-Marat Y, Vrtala S, Mittermann I, Garib V, Khaitov M, Valent P, Pickl WF. Molecular Aspects of Allergens and Allergy. Adv Immunol 2018; 138:195-256. [PMID: 29731005 DOI: 10.1016/bs.ai.2018.03.002] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Immunoglobulin E (IgE)-associated allergy is the most common immune disorder. More than 30% of the population suffer from symptoms of allergy which are often severe, disabling, and life threatening such as asthma and anaphylaxis. Population-based birth cohort studies show that up to 60% of the world population exhibit IgE sensitization to allergens, of which most are protein antigens. Thirty years ago the first allergen-encoding cDNAs have been isolated. In the meantime, the structures of most of the allergens relevant for disease in humans have been solved. Here we provide an update regarding what has been learned through the use of defined allergen molecules (i.e., molecular allergology) and about mechanisms of allergic disease in humans. We focus on new insights gained regarding the process of sensitization to allergens, allergen-specific secondary immune responses, and mechanisms underlying allergic inflammation and discuss open questions. We then show how molecular forms of diagnosis and specific immunotherapy are currently revolutionizing diagnosis and treatment of allergic patients and how allergen-specific approaches may be used for the preventive eradication of allergy.
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Affiliation(s)
- Rudolf Valenta
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria; NRC Institute of Immunology FMBA of Russia, Moscow, Russia.
| | - Alexander Karaulov
- Laboratory of Immunopathology, Department of Clinical Immunology and Allergy, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Verena Niederberger
- Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
| | - Pia Gattinger
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Marianne van Hage
- Department of Medicine Solna, Immunology and Allergy Unit, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Sabine Flicker
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Birgit Linhart
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Raffaela Campana
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Margarete Focke-Tejkl
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Mirela Curin
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Julia Eckl-Dorna
- Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
| | - Christian Lupinek
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Yvonne Resch-Marat
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Susanne Vrtala
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Irene Mittermann
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Victoria Garib
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria; International Network of Universities for Molecular Allergology and Immunology, Vienna, Austria
| | - Musa Khaitov
- NRC Institute of Immunology FMBA of Russia, Moscow, Russia
| | - Peter Valent
- Department of Internal Medicine I, Division of Hematology & Hemostaseology, Medical University of Vienna, Vienna, Austria; Ludwig Boltzmann Cluster Oncology, Medical University of Vienna, Vienna, Austria
| | - Winfried F Pickl
- Institute of Immunology, Medical University of Vienna, Vienna, Austria
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8
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Kandhare AD, Aswar UM, Mohan V, Thakurdesai PA. Ameliorative effects of type-A procyanidins polyphenols from cinnamon bark in compound 48/80-induced mast cell degranulation. Anat Cell Biol 2017; 50:275-283. [PMID: 29354299 PMCID: PMC5768564 DOI: 10.5115/acb.2017.50.4.275] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 07/21/2017] [Accepted: 11/21/2017] [Indexed: 12/31/2022] Open
Abstract
Allergic diseases are a significant health concern in developing countries. Type-A procyanidin polyphenols from cinnamon (Cinnamomum zeylanicum Blume) bark (TAPP-CZ) possesses antiasthmatic and antiallergic potential. The present study was aimed at the possible anti-allergic mechanism of TAPP-CZ against the compound 48/80 (C48/80)–induced mast cell degranulation in isolated rat peritoneal mast cells (RPMCs). TAPP-CZ (1, 3, 10, and 30 µg/ml) was incubated for 3 hours with isolated, purified RPMCs. The C48/80 (1 µg/ml) was used to induce mast cell degranulation. The mast cell viability was assessed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay whereas histamine, β-hexosaminidase (β-HEX), and interleukin-4 (IL-4) levels were determined in RPMCs. TAPP-CZ (3, 10, and 30 µg/ml) showed significant and dose-dependent decrease in a number of degranulated cells and levels of markers (histamine, β-HEX, and IL-4) as compared with C48/80 control. In conclusion, TAPP-CZ stabilizes mast cell and cause inhibition of the allergic markers such as histamine, IL-4, and β-HEX in IgE-mediated manner. The present study supports mast cell stabilization as a possible mechanism of action of TAPP-CZ against immune respiratory disorders such as asthma and allergic rhinitis.
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Affiliation(s)
- Amit D Kandhare
- Department of Scientific Affairs, Indus Biotech Private Limited, Pune, India
| | - Urmila M Aswar
- Department of Pharmacology, Sinhgad Institute of Pharmacy, Pune, India
| | - Vishwaraman Mohan
- Department of Scientific Affairs, Indus Biotech Private Limited, Pune, India
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9
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Hannya N, Ogita-Nakanishi H, Kato R, Ijiri Y, Hayashi T, Tanaka K, Kawata R, Takenaka H, Kubota T, Yoshida R. The 1st step initiation essential for allergen-specific IgE antibody production upon the 2nd step: Induction of non-specific IgE + small B cells containing secondly-sensitized allergen-specific ones in mice firstly-sensitized with an allergen. Microbiol Immunol 2017; 62:99-110. [PMID: 29193290 DOI: 10.1111/1348-0421.12558] [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: 07/28/2017] [Revised: 11/01/2017] [Accepted: 11/24/2017] [Indexed: 11/28/2022]
Abstract
There was a significant amount of non-specific, but not of allergen (e.g., papain, mite feces and four kinds of pollen)-specific, IgE antibodies (Abs) in the sera of normal mice. An i.n. injection of each allergen without adjuvant into mice caused an increase in total IgE Ab titers with a similar time course in the serum. However, the stage of initiation of allergy varied from allergen to allergen. Submandibular lymph node cells from normal mice contained papain-, but not mite feces- or pollen-specific IgE+ cells and an i.n. injection of papain induced papain-specific IgE Abs in the serum. In contrast, one (i.n.) or two (i.n. and s.c) injections of mite feces induced neither mite feces-specific IgE+ cells in the lymph nodes nor mite feces-specific IgE Abs in the serum. I.n. sensitization with cedar pollen induced cedar pollen-specific IgE+ small B cells in the lymph nodes on Day 10, when non-specific IgE Ab titers reached a peak in the serum, implying induction of related allergen-specific IgE+ small cells as well. In fact, a second (s.c.) injection of ragweed (or cedar) pollen into mice sensitized i.n. once with cedar (or ragweed) pollen, but not with mite feces, induced a large amount of ragweed (or cedar) pollen-specific IgE Abs in the serum. These results indicate that when firstly-sensitized non-specific IgE+ small B cells in mouse lymph nodes include some secondly-sensitized allergen-specific ones, mice produce IgE Abs specific for the secondly-injected allergen.
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Affiliation(s)
- Natsuki Hannya
- Department of Physiology, Osaka Medical College, Takatsuki 569-8686, Japan.,Department of Clinical Pharmacy, and Clinical Pharmacokinetics, Osaka University of Pharmaceutical Sciences, Takatsuki 569-1094, Japan
| | - Hiromi Ogita-Nakanishi
- Department of Physiology, Osaka Medical College, Takatsuki 569-8686, Japan.,Department of Otorhinolaryngology, Osaka Medical College, Takatsuki 569-8686, Japan
| | - Ryuji Kato
- Department of Clinical Pharmacy, and Clinical Pharmacokinetics, Osaka University of Pharmaceutical Sciences, Takatsuki 569-1094, Japan
| | - Yoshio Ijiri
- Department of Clinical Pharmacy, and Clinical Pharmacokinetics, Osaka University of Pharmaceutical Sciences, Takatsuki 569-1094, Japan
| | - Tetsuya Hayashi
- Department of Clinical Pharmacy, and Clinical Pharmacokinetics, Osaka University of Pharmaceutical Sciences, Takatsuki 569-1094, Japan
| | - Kazuhiko Tanaka
- Department of Clinical Pharmacy, and Clinical Pharmacokinetics, Osaka University of Pharmaceutical Sciences, Takatsuki 569-1094, Japan
| | - Ryo Kawata
- Department of Otorhinolaryngology, Osaka Medical College, Takatsuki 569-8686, Japan
| | - Hiroshi Takenaka
- Department of Otorhinolaryngology, Osaka Medical College, Takatsuki 569-8686, Japan
| | - Takahiro Kubota
- Department of Physiology, Osaka Medical College, Takatsuki 569-8686, Japan
| | - Ryotaro Yoshida
- Department of Physiology, Osaka Medical College, Takatsuki 569-8686, Japan
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10
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MacGlashan D. Stability of Syk protein and mRNA in human peripheral blood basophils. J Leukoc Biol 2016; 100:535-43. [PMID: 26980801 DOI: 10.1189/jlb.2a0815-356r] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 02/17/2016] [Indexed: 01/10/2023] Open
Abstract
In human basophils, Syk expression is 10-fold lower than most other types of leukocytes. There are indirect studies that suggest that Syk protein is highly unstable (a calculated half-life less than 15 min) in human peripheral blood basophils. Therefore, in these studies, Syk stability was directly examined. Purified basophils were metabolically labeled and a pulse-chase experimental design showed Syk protein to be stable in the time frame of 12 h (95% likelihood that half-life is more than 12 h). However, its synthetic rate was very slow (∼10-fold slower) compared with CD34-derived basophils, which have been shown to express levels of Syk consistent with other mature circulating leukocytes. Syk mRNA expression was found to be 5-30-fold lower than other cell types (CD34-derived basophils, peripheral blood eosinophils, and plasmacytoid dendritic cells). Syk protein and mRNA levels, across cell types, were relatively concordant. Syk mRNA in basophils showed a half-life of 3.5 h, which was greater than that of interleukin-4 or Fc epsilon receptor I-α mRNA (∼2 h), but somewhat shorter than Fc epsilon receptor I-β mRNA (8 h). A comparison of miR expression between CD34-derived and peripheral blood basophils demonstrated only 1 significant increase, in miR-150 (77-fold). Transfection in human embryonic kidney cells of a stabilized form of miR-150 showed that it modified expression of c-Myb mRNA but not of Syk mRNA or protein. These results suggest that low Syk expression in basophils results, not from protein instability and perhaps not from mRNA stability. Instead, the results point to the transcriptional nature of an important point of regulation.
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11
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Bochner BS. "Siglec"ting the allergic response for therapeutic targeting. Glycobiology 2016; 26:546-52. [PMID: 26911285 DOI: 10.1093/glycob/cww024] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 02/20/2016] [Indexed: 01/09/2023] Open
Abstract
As a physician-scientist, I have pursued research related to translational immunology with the goal of improving our ability to diagnose and treat allergic, immunologic and other diseases involving eosinophils, basophils and mast cells. We have tried to delineate novel mechanisms of human disease, working whenever possible with primary human cells and tissues, attempting to identify targets that might be amenable to the development of new therapies. As a general strategy, we have compared eosinophils, basophils, mast cells and neutrophils to look for pathways in inflammation that were unique to distinct subsets of these cells. In doing so, the concepts of glycobiology did not enter my mind until we began noticing some intriguing functional differences involving selectins and their ligands among these cell types. One simple observation, that neutrophils were coated with a glycan that allowed them to interact with an endothelial adhesion molecule while eosinophils lacked this structure, pried open the glyco-door for me. Fruitful collaborations with card-carrying glycobiologists soon followed that have forever positively influenced our science, and have enhanced our hypotheses, experimental design, research opportunities and discoveries. Within a few years, we helped to discover Siglec-8, an I-type lectin expressed only on human eosinophils, basophils, mast cells. This receptor, together with its closest mouse counterpart Siglec-F, has been the primary focus of our work now for over a decade. If not for those in the fields of glycobiology and glycoimmunology, my lab would not have made much progress toward the goal of leveraging Siglec-8 for therapeutic purposes.
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Affiliation(s)
- Bruce S Bochner
- Department of Medicine, Division of Allergy-Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
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12
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Joo HM, Kang SJ, Nam SY, Yang KH, Kim CS, Lee IK, Kim JY. The Inhibitory Effects of Low-Dose Ionizing Radiation in IgE-Mediated Allergic Responses. PLoS One 2015; 10:e0136394. [PMID: 26317642 PMCID: PMC4552795 DOI: 10.1371/journal.pone.0136394] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 08/03/2015] [Indexed: 11/20/2022] Open
Abstract
Ionizing radiation has different biological effects according to dose and dose rate. In particular, the biological effect of low-dose radiation is unclear. Low-dose whole-body gamma irradiation activates immune responses in several ways. However, the effects and mechanism of low-dose radiation on allergic responses remain poorly understood. Previously, we reported that low-dose ionizing radiation inhibits mediator release in IgE-mediated RBL-2H3 mast cell activation. In this study, to have any physiological relevance, we investigated whether low-dose radiation inhibits allergic responses in activated human mast cells (HMC-1(5C6) and LAD2 cells), mouse models of passive cutaneous anaphylaxis and the late-phase cutaneous response. High-dose radiation induced cell death, but low-dose ionizing radiation of <0.5 Gy did not induce mast cell death. Low-dose ionizing radiation that did not induce cell death significantly suppressed mediator release from human mast cells (HMC-1(5C6) and LAD2 cells) that were activated by antigen-antibody reaction. To determine the inhibitory mechanism of mediator released by low-dose ionizing radiation, we examined the phosphorylation of intracellular signaling molecules such as Lyn, Syk, phospholipase Cγ, and protein kinase C, as well as the intracellular free Ca2+ concentration ([Ca2+]i). The phosphorylation of signaling molecules and [Ca2+]i following stimulation of FcεRI receptors was inhibited by low dose ionizing radiation. In agreement with its in vitro effect, ionizing radiation also significantly inhibited inflammatory cells infiltration, cytokine mRNA expression (TNF-α, IL-4, IL-13), and symptoms of passive cutaneous anaphylaxis reaction and the late-phase cutaneous response in anti-dinitrophenyl IgE-sensitized mice. These results indicate that ionizing radiation inhibits both mast cell-mediated immediate- and delayed-type allergic reactions in vivo and in vitro.
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Affiliation(s)
- Hae Mi Joo
- Low-dose Radiation Research Team, Radiation Health Institute, Korea Hydro & Nuclear Power Co., Ltd., Seoul, Korea
| | - Su Jin Kang
- Low-dose Radiation Research Team, Radiation Health Institute, Korea Hydro & Nuclear Power Co., Ltd., Seoul, Korea
| | - Seon Young Nam
- Low-dose Radiation Research Team, Radiation Health Institute, Korea Hydro & Nuclear Power Co., Ltd., Seoul, Korea
| | - Kwang Hee Yang
- Low-dose Radiation Research Team, Radiation Health Institute, Korea Hydro & Nuclear Power Co., Ltd., Seoul, Korea
| | - Cha Soon Kim
- Low-dose Radiation Research Team, Radiation Health Institute, Korea Hydro & Nuclear Power Co., Ltd., Seoul, Korea
| | - In Kyung Lee
- Low-dose Radiation Research Team, Radiation Health Institute, Korea Hydro & Nuclear Power Co., Ltd., Seoul, Korea
| | - Ji Young Kim
- Low-dose Radiation Research Team, Radiation Health Institute, Korea Hydro & Nuclear Power Co., Ltd., Seoul, Korea
- * E-mail:
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13
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Swerlick RA, Puar N. Delayed pressure urticaria: response to treatment with sulfasalazine in a case series of seventeen patients. Dermatol Ther 2015; 28:318-22. [DOI: 10.1111/dth.12266] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Robert A. Swerlick
- Department of Dermatology; Emory University School of Medicine; Tagore Nagar Civil Lines
| | - Neha Puar
- Dayanand Medical College and Hospital; Tagore Nagar Civil Lines
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Valenta R, Hochwallner H, Linhart B, Pahr S. Food allergies: the basics. Gastroenterology 2015; 148:1120-31.e4. [PMID: 25680669 PMCID: PMC4414527 DOI: 10.1053/j.gastro.2015.02.006] [Citation(s) in RCA: 150] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2014] [Revised: 02/04/2015] [Accepted: 02/05/2015] [Indexed: 12/16/2022]
Abstract
IgE-associated food allergy affects approximately 3% of the population and has severe effects on the daily life of patients-manifestations occur not only in the gastrointestinal tract but also affect other organ systems. Birth cohort studies have shown that allergic sensitization to food allergens develops early in childhood. Mechanisms of pathogenesis include cross-linking of mast cell- and basophil-bound IgE and immediate release of inflammatory mediators, as well as late-phase and chronic allergic inflammation, resulting from T-cell, basophil, and eosinophil activation. Researchers have begun to characterize the molecular features of food allergens and have developed chip-based assays for multiple allergens. These have provided information about cross-reactivity among different sources of food allergens, identified disease-causing food allergens, and helped us to estimate the severity and types of allergic reactions in patients. Importantly, learning about the structure of disease-causing food allergens has allowed researchers to engineer synthetic and recombinant vaccines.
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Affiliation(s)
- Rudolf Valenta
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria.
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15
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A study for characterization of IgE-mediated cutaneous immediate and late-phase reactions in non-allergic domestic cats. Vet Immunol Immunopathol 2014; 159:41-9. [PMID: 24629765 DOI: 10.1016/j.vetimm.2014.02.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Revised: 02/06/2014] [Accepted: 02/14/2014] [Indexed: 01/21/2023]
Abstract
Immunoglobulin-E (IgE) mediated reactions can be induced by intradermal injection of anti-IgE antibodies in both humans and dogs. These reactions grossly and histologically mimic changes seen in naturally occurring allergic dermatitis in these species. Similar studies have not been conducted in the cat. Purified polyclonal rabbit-origin IgG specific for canine IgE (anti-IgE) and rabbit immunoglobulin G (IgG) were injected intradermally in 7 non-allergic laboratory colony cats. Wheal measurements were obtained and biopsies collected before injection and at injection sites after 20 min, 6, 24, and 48 h. Injection of anti-IgE induced an immediate wheal response which was significantly larger than that seen after injection of rabbit IgG. Anti-IgE injected skin was also significantly thicker than IgG-injected skin. This corresponded with a significant increase in number of visibly degranulated mast cells in anti-IgE samples when compared to IgG samples. Injection of anti-IgE was associated with the rapid recruitment of inflammatory cells to the injected dermis. The number of inflammatory cells and mononuclear cells were significantly elevated after the injection of anti-IgE when compared to IgG-injected skin. Both eosinophils and neutrophils were significantly increased in anti-IgE samples relative to IgG, although neutrophils were only transiently increased. The high eosinophil and relatively low neutrophil cell counts in these samples were consistent with previously documented histologic features of naturally occurring feline allergic skin disease. Immunohistochemistry identified a significantly overall increased CD1a(+) cells after the intradermal injection of anti-IgE when compared to IgG and non-injected skin. CD3(+), CD8(+) and CD4(+) were also significantly increased overall in anti-IgE injected skin relative to IgG injected skin. These data document the gross and cellular response to injection of anti-IgE in the skin of healthy, non-allergic cats and support a possible role for IgE in the development of feline allergic dermatitis.
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Koketsu R, Yamaguchi M, Suzukawa M, Tanaka Y, Tashimo H, Arai H, Nagase H, Matsumoto K, Saito H, Ra C, Yamamoto K, Ohta K. Pretreatment with low levels of FcεRI-crosslinking stimulation enhances basophil mediator release. Int Arch Allergy Immunol 2013; 161 Suppl 2:23-31. [PMID: 23711850 DOI: 10.1159/000350339] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Basophils and mast cells are important initiator/effector cells capable of rapidly responding to IgE-mediated stimulation, but the precise mechanisms regulating their functions in vivo have not been fully identified. In this study, we assessed whether low levels of antigen can modulate activation of basophils and mast cells. METHODS Human basophils and cultured mast cells were pretreated with low concentrations of anti-FcεRI α-chain mAb (CRA-1 mAb), and their cell functions were assessed. RESULTS Basophils preincubated with CRA-1 mAb at as low as 1 ng/ml for 1 h showed significantly enhanced degranulation in response to various secretagogues such as MCP-1, FMLP, leukotriene B4 and Ca ionophore A23187. FMLP-induced leukotriene C4 production by basophils was also enhanced by CRA-1 mAb pretreatment. Degranulation was further enhanced when CRA-1 mAb-pretreated basophils were additionally treated with IL-3, IL-33 or leptin before stimulation with MCP-1. Priming by subthreshold CRA-1 mAb was a slow process, since 1 h of pretreatment was needed for maximal enhancement. Basophil priming also resulted from preincubation with subthreshold doses of an allergen, Der f 2. In parallel mAb experiments, CRA-1 mAb showed weak priming effects on human umbilical cord blood-derived cultured mast cells; a higher dose, 100 ng/ml, was necessary for this priming. CONCLUSION These results indicate that subthreshold doses of CRA-1 mAb or allergens can prime basophils and induce exaggerated responses to various IgE-independent stimuli. This may be a potentially important mechanism that explains environmental allergen-induced exacerbation of IgE-mediated allergic diseases such as asthma.
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Affiliation(s)
- Rikiya Koketsu
- Department of Allergy and Rheumatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
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Hirano M, Ogita-Nakanishi H, Miyachi W, Hannya N, Yamamoto-Kimoto Y, Sakurai K, Miyoshi-Higashino M, Tashiro-Yamaji J, Kato R, Ijiri Y, Tanaka K, Kanazawa A, Terada T, Kawata R, Takenaka H, Kubota T, Yoshida R. Essential role of macrophages in the initiation of allergic rhinitis in mice sensitized intranasally once with cedar pollen: regulation of class switching of immunoglobulin in B cells by controlling interleukin-4 production in T cells of submandibular lymph nodes. Microbiol Immunol 2012; 56:392-405. [PMID: 22404751 DOI: 10.1111/j.1348-0421.2012.00449.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The production of allergen-specific IgE antibodies (Abs) in allergen-sensitized patients or animals has a mutual relationship with the immunologic response leading to allergic rhinitis. We recently reported that, after an intranasal injection of cedar pollen into mice, an interleukin-4 (IL-4)-dependent increase in serum nonspecific IgE Abs was a prerequisite for the production of serum allergen-specific IgE Abs. Here, we explored which lymphoid organs were responsive to the intranasally injected allergen and how IL-4 and IgE Abs were produced in the lymphocytes. Time-dependent changes in the total cell numbers and in in vitro IgE Ab production in various lymphoid organs revealed that the submandibular lymph nodes were the main responsible organ. After treatment with allergen (for IgE production) or allergen and complete Freund's adjuvant (for IgG production), we separated submandibular lymph node cells into macrophage-, lymphocyte-, and granulocyte-rich populations by discontinuous Percoll density-gradient centrifugation. Unexpectedly, bulk cells, but not the lymphocyte- or macrophage-rich populations, produced significant amounts of IL-4, IgE, and IgG; whereas production was restored by addition of Mac-1(+) cells from the macrophage-rich to the lymphocyte-rich fraction. Furthermore, a combination of the lymphocyte-rich population (for IgG [or IgE]) production) and the macrophage-rich population (for IgE [or IgG]) production) produced a large amount of IgE (or IgG). These results indicate that, in the initiation of allergic rhinitis, macrophages in the submandibular lymph nodes are essential not only for IL-4 or immunoglobulin production, but also for class switching of immunoglobulin in lymphocytes.
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Affiliation(s)
- Masayo Hirano
- Department of Physiology, Osaka Medical College, Takatsuki 569-8686, Japan
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Voehringer D. Basophils in allergic immune responses. Curr Opin Immunol 2011; 23:789-93. [PMID: 22035810 DOI: 10.1016/j.coi.2011.09.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Accepted: 09/28/2011] [Indexed: 01/22/2023]
Abstract
Basophils are rare effector cells of the innate immune system. They are generally associated with type 2 immune responses that develop during helminth infections and allergic reactions. The role of basophils for initiation and execution of allergic immune responses is not well understood. Over the past few years new tools have been generated to study the function of basophils in mouse models. Depending on the experimental systems used conflicting results were obtained with regard to the role of basophils for initiation and execution of immune responses against allergens and helminths. This review highlights the current knowledge about basophil in vivo functions with a focus on the role of basophils for allergic responses like asthma, allergic skin diseases and anaphylaxis.
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Affiliation(s)
- David Voehringer
- Department of Infection Biology, Institute for Medical Microbiology, Immunology and Hygiene, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany.
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He SH, Liu ZQ, Chen X, Song CH, Zhou LF, Ma WJ, Cheng L, Du Y, Tang SG, Yang PC. IL-9(+) IL-10(+) T cells link immediate allergic response to late phase reaction. Clin Exp Immunol 2011; 165:29-37. [PMID: 21488868 DOI: 10.1111/j.1365-2249.2011.04394.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The mechanism underlying late-phase allergic reactions (LPR) remains incompletely understood. This study aimed to investigate the role of a newly described subset of T cells, interleukin (IL)-9(+) IL-10(+) T cells, in the pathogenesis of LPR. Using a T helper type 2 (Th2) inflammatory mouse model, we examined the frequency of IL-9(+) IL-10(+) T cells in the jejunum by immunohistochemistry. The LPR in the jejunum was observed afterwards. The cytokine profile of IL-9(+) IL-10(+) T cells was characterized and the major cytokine that plays the critical role in the initiation of LPR was investigated. Abundant IL-9(+) IL-10(+) T cells as well as inflammatory cell extravasation in the jejunal sections were observed in sensitized mice 48 h after specific antigen challenge. IL-9(+) IL-10(+) T cells expressed high levels of macrophage inflammatory protein 1 (MIP1) that could be enhanced by T cell receptor activation. MIP1 facilitated macrophage extravasation in local tissue. Macrophage-derived MIP2 contributed to neutrophil infiltration in the intestine in LPR. Pretreatment with anti-MIP antibody inhibited the LPR in the intestine. IL-9(+) IL-10(+) T cells play an important role in LPR. This subset of T cells has the potential to be a novel therapeutic target in the treatment of LPR and LPR-related inflammation.
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Affiliation(s)
- S-H He
- Clinical Experimenmtal Center, The First Affiliated Hospital, Nanjing Medical University, Department of Pathology & Molecular Medicine, McMaster University, Hamilton, ON, Canada
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20
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Qiao J, Li A, Jin X, Wang J. Mastic alleviates allergic inflammation in asthmatic model mice by inhibiting recruitment of eosinophils. Am J Respir Cell Mol Biol 2010; 45:95-100. [PMID: 20855649 DOI: 10.1165/rcmb.2010-0212oc] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The pathogenesis of allergic asthma is characterized by airway inflammation, eosinophilia, and airway hyperresponsiveness. In the present study, we investigated the anti-inflammatory effects of mastic, obtained from the stem and the leaves of Pistacia lentiscus trees, on allergic asthma. In an ovalbumin-induced mouse asthma model, mastic significantly inhibited eosinophilia, while reducing airway hyperresponsiveness and suppressing the production of inflammatory cytokines (IL-5 and IL-13) as well as chemokines (eotaxin, eotaxin2, and regulated upon activation, normal T-cell expressed and secreted) in bronchoalveolar lavage fluid. Moreover, mastic potently inhibited eotaxin-induced eosinophil chemotaxis in vitro without influencing eotaxin receptor, chemokine receptor 3, expression. These results suggest that mastic may contribute to the treatment of inflammatory diseases.
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Affiliation(s)
- Jianou Qiao
- 639 Zhizaoju Road, Respiratory Department, Shanghai Jiao Tong University Affiliated Ninth People's Hospital, Shanghai 200011, People's Republic of China
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21
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Gibbs BF, Streatfield C, Falcone FH. Basophils as critical orchestrators of Th2-type immune responses. Expert Rev Clin Immunol 2009; 5:725-734. [DOI: 10.1586/eci.09.47] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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22
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CC16 inhibits the migration of eosinophils towards the formyl peptide fMLF but not towards PGD2. Inflammation 2009; 32:65-9. [PMID: 19132521 DOI: 10.1007/s10753-008-9103-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Clara cell 16-kDa (CC16) is an anti-inflammatory protein chiefly produced in the lung epithelium. CC16 has been shown to inhibit the migration of rabbit neutrophils and human monocytes toward the formyl peptide N-formyl-methionine-leucin-phenylalanin (fMLF). Eosinophils migrate towards prostaglandin D2 (PGD(2)) and CC16 has been shown to bind to PGD(2). Therefore we investigated if CC16 could inhibit the migration of human eosinophils and neutrophils towards fMLF and/or PGD(2). Migration of eosinophils and neutrophils was assessed in a microplate migration system using specific ligands and receptor antagonists. CC16 inhibited the migration of eosinophils and neutrophils toward fMLF, which is likely to result from the interaction of CC16 with members of the formyl-peptide receptor family. However, CC16 did not inhibit eosinophil migration towards PGD(2). We therefore propose that CC16 may down-modulate the entry of human eosinophils and neutrophils into the airways during inflammation in the lung.
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Tomkinson A, Morton M, Stevens L, Bowden A, Tepper J. Allergen dose dependency of the early- and late-phase cutaneous response in the cynomolgus monkey. Clin Exp Allergy 2009; 39:1080-7. [PMID: 19400909 DOI: 10.1111/j.1365-2222.2009.03240.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Cutaneous administration of allergen provides a means to confirm an allergic status, investigate the pathogenesis of allergic diseases, and/or provide a mechanism to evaluate the benefit of new potential therapeutics. OBJECTIVE Studies were performed to characterize the allergen-induced cutaneous early- and late-phase response (EPR and LPR) in the cynomolgus monkey. METHODS Following intradermal injections of Ascaris suum allergen, the cutaneous weal and flare EPR was measured 15 min post-injection, and skin biopsies were collected at 8-24 h to determine the optimal time of LPR occurrence. Biopsies were analysed for epidermal and dermal inflammatory changes. RESULTS The EPR was dose related with a reproducible, measurable response at 1 : 10 000 and maximal at a 1 : 100 allergen dilution. In contrast, the threshold dose required for a reproducible LPR was much greater requiring a dilution of 6 : 100, suggesting independent mechanisms for the EPR and LPR. The LPR 20 h post-allergen injection induced an inflammatory response in the upper and deep dermis. The response was characterized by a moderate perivascular to diffuse inflammation consisting of mononuclear cells, neutrophils and eosinophils. Dexamethasone, while having no effect on the EPR, reduced dermal inflammation (upper dermis, P=0.004; deep dermis, P=0.03). Similarly, dermal eosinophilia was also reduced (upper dermis, P<0.001; deep dermis, P=0.02). CONCLUSION Collectively, the results indicate the dose dependency of the EPR and LPR. Furthermore, our observations indicate the value of the LPR response in the cynomolgus monkey to evaluate new therapeutics for the treatment of allergic diseases such as atopic dermatitis.
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Affiliation(s)
- A Tomkinson
- Department of Preclinical Development, Aerovance Inc., Berkeley, CA 94710, USA.
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24
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Yamaguchi M, Koketsu R, Suzukawa M, Kawakami A, Iikura M. Human basophils and cytokines/chemokines. Allergol Int 2009; 58:1-10. [PMID: 19153531 DOI: 10.2332/allergolint.08-rai-0056] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2008] [Indexed: 01/08/2023] Open
Abstract
Basophils comprise the smallest population in human peripheral blood leukocytes. The role of basophils in the pathogenesis of allergic diseases has long been obscure, although their accumulation and activation in tissues have suggested their potential importance. Recent advances in the field of basophil biology have indicated that cytokines and chemokines are the primary regulators of basophil functions. In addition, various functions of these cells seem differently modulated. The evidence strongly supports the notion that basophils exposed to these substances and allergens will behave as unique effector cells that presumably play proinflammatory roles in type I allergic reactions.
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Affiliation(s)
- Masao Yamaguchi
- Department of Allergy and Rheumatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan.
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25
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Suzukawa M, Iikura M, Koketsu R, Nagase H, Tamura C, Komiya A, Nakae S, Matsushima K, Ohta K, Yamamoto K, Yamaguchi M. An IL-1 cytokine member, IL-33, induces human basophil activation via its ST2 receptor. THE JOURNAL OF IMMUNOLOGY 2009; 181:5981-9. [PMID: 18941187 DOI: 10.4049/jimmunol.181.9.5981] [Citation(s) in RCA: 238] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Basophils are thought to play pivotal roles in allergic inflammation through rapid release of chemical mediators in addition to sustained production of Th2 cytokines, including IL-4. A newly identified cytokine, IL-33, has been recognized as one of the key cytokines enhancing Th2-balanced immune regulation through its receptor, ST2. The present study was conducted to elucidate whether IL-33 acts directly on, and affects the functions of, human basophils. Real-time PCR analysis showed that basophils express transcripts for ST2. The expression levels were significantly higher compared with eosinophils and neutrophils, and treatment with IL-33 significantly up-regulated basophil ST2 mRNA expression. Expressions of IL-4 and IL-13 mRNA were also up-regulated by IL-33, and there was also enhanced secretion of IL-4 protein. IL-33 increased the surface levels of basophil CD11b expression and enhanced basophil adhesiveness. Although IL-33 failed to directly induce degranulation or attract basophils, it exerted priming effects on basophils. It enhanced degranulation in response to IgE-crosslinking stimulus and also enhanced basophil migration toward eotaxin without changing surface CCR3. Also, IL-33 synergistically enhanced IL-4 production and CD11b expression by IL-3-stimulated basophils. Neutralization using Ab specific for ST2 significantly diminished the enhancing effects of IL-33 on both basophil CD11b expression and migration toward eotaxin, indicating that IL-33 signals via ST2 expressed on basophils. This study revealed that IL-33 potently regulates migration and activation of human basophils. IL-33 may be a key cytokine in the pathogenesis of Th2-dominant inflammation by acting not only on lymphocytes but also on effector cells such as basophils.
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Affiliation(s)
- Maho Suzukawa
- Department of Allergy and Rheumatology, University of Tokyo Graduate School of Medicine, Japan
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26
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Miyoshi-Higashino M, Hirano M, Ogita-Nakanishi H, Yamamoto-Kimoto Y, Sakurai K, Tashiro-Yamaji J, Nomi H, Takahashi T, Miura-Takeda S, Takenaka H, Kubota T, Yoshida R. IL-4-dependent induction of IgE+basophils in peripheral blood and IgE+B cells in spleen as respective indicators of allergen sensitization and a precursor of cells secreting allergen-specific IgE antibody. Microbiol Immunol 2009; 53:30-40. [DOI: 10.1111/j.1348-0421.2008.00088.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Sabroe R, Greaves M. Chronic idiopathic urticaria and its management. Dermatol Ther 2008. [DOI: 10.1111/j.1529-8019.2000.00036.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- R.A. Sabroe
- St. John's Institute of Dermatology, Guy's, King's and St. Thomas's School of Medicine, King's College London, St. Thomas's Hospital, London
| | - M.W. Greaves
- St. John's Institute of Dermatology, Guy's, King's and St. Thomas's School of Medicine, King's College London, St. Thomas's Hospital, London
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28
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MASON IANS, LLOYD DAVIDH. Evaluation of compound 48/80 as a model of immediate hypersensitivity in the skin of dogs. Vet Dermatol 2008; 7:81-83. [DOI: 10.1111/j.1365-3164.1996.tb00230.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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29
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Yamamoto Y, Tashiro-Yamaji J, Sakurai K, Miyoshi-Higashino M, Nomi H, Miura-Takeda S, Okada M, Yamaguchi S, Takenaka H, Kubota T, Yoshida R. Essential Role of Monocytes in the In Vitro Production of IL-4 and Nonspecific IgE Antibody by Peripheral Blood Lymphocytes from Mice Sensitized s.c. Once with Cedar Pollen. J Interferon Cytokine Res 2007; 27:1019-29. [DOI: 10.1089/jir.2007.0061] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Yumiko Yamamoto
- Department of Physiology, Osaka Medical College, Takatsuki 569-8686, Japan
- Department of Otorhinolaryngology, Osaka Medical College, Takatsuki 569-8686, Japan
| | | | - Kanji Sakurai
- Department of Physiology, Osaka Medical College, Takatsuki 569-8686, Japan
| | | | - Hayahito Nomi
- Department of Physiology, Osaka Medical College, Takatsuki 569-8686, Japan
| | | | - Masashi Okada
- Department of Physiology, Osaka Medical College, Takatsuki 569-8686, Japan
| | - Satoko Yamaguchi
- Department of Physiology, Osaka Medical College, Takatsuki 569-8686, Japan
| | - Hiroshi Takenaka
- Department of Otorhinolaryngology, Osaka Medical College, Takatsuki 569-8686, Japan
| | - Takahiro Kubota
- Department of Physiology, Osaka Medical College, Takatsuki 569-8686, Japan
| | - Ryotaro Yoshida
- Department of Physiology, Osaka Medical College, Takatsuki 569-8686, Japan
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30
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Suzukawa M, Komiya A, Yoshimura-Uchiyama C, Kawakami A, Koketsu R, Nagase H, Iikura M, Yamada H, Ra C, Ohta K, Yamamoto K, Yamaguchi M. IgE- and FcepsilonRI-mediated enhancement of surface CD69 expression in basophils: role of low-level stimulation. Int Arch Allergy Immunol 2007; 143 Suppl 1:56-9. [PMID: 17541278 DOI: 10.1159/000101406] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Surface-expressed CD69 is a recently recognized activation marker for basophils and is reported to be strongly induced in vitro by IL-3. In this study, we investigated whether IgE- and high-affinity receptor for IgE (FcepsilonRI)-dependent stimuli can affect basophil CD69 expression. Highly purified basophils were cultured for 24 h in the presence of anti-FcepsilonRI alpha-chain mAb, CRA-1 and IL-3, and surface CD69 expression was analyzed by flow cytometry. CRA-1 mAb at 1 ng/ml or lower concentrations, levels too low to provoke direct histamine release, dose-dependently enhanced surface CD69 expression in the presence of IL-3, although low-dose CRA-1 mAb failed to induce CD69 expression in the absence of IL-3. Recombinant Der f 2 at 10 to 100 pg/ml enhanced CD69 levels in the presence of IL-3 in basophils from mite-sensitive subjects. These results suggest that allergens may influence basophil CD69 expression even when the levels of the antigens are too low to trigger direct degranulation. Upregulated CD69 expression on locally accumulated basophils in bronchial asthma may be attributed at least in part to a combination of local cytokines, especially IL-3, plus exposure to low levels of IgE-crosslinking allergens.
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MESH Headings
- Allergens/immunology
- Animals
- Antibodies, Monoclonal/pharmacology
- Antigens, CD/biosynthesis
- Antigens, CD/genetics
- Antigens, Dermatophagoides/immunology
- Antigens, Differentiation, T-Lymphocyte/biosynthesis
- Antigens, Differentiation, T-Lymphocyte/genetics
- Arthropod Proteins
- Asthma/etiology
- Asthma/immunology
- Basophils/immunology
- Basophils/metabolism
- Cells, Cultured/immunology
- Cytokines/physiology
- Dose-Response Relationship, Immunologic
- Histamine Release/immunology
- Humans
- Immunoglobulin E/immunology
- Immunoglobulin G/immunology
- Interleukin-3/immunology
- Lectins, C-Type
- Mice
- Pyroglyphidae/immunology
- Receptors, IgE/antagonists & inhibitors
- Receptors, IgE/immunology
- Up-Regulation/immunology
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Affiliation(s)
- Maho Suzukawa
- Department of Allergy and Rheumatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
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Plewako H, Wosińska K, Arvidsson M, Bjorkander J, Skov PS, Håkansson L, Rak S. Basophil interleukin 4 and interleukin 13 production is suppressed during the early phase of rush immunotherapy. Int Arch Allergy Immunol 2006; 141:346-53. [PMID: 16940746 DOI: 10.1159/000095461] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2005] [Accepted: 04/20/2006] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Studies using rush immunotherapy (RIT) have shown that rapid protection can be achieved using protocols allowing a fast increment of allergen dose. We examined the early effects of RIT on basophil numbers and expression of CD203c, production of interleukin (IL)-4 and IL-13 and histamine release by basophils in the peripheral blood of patients treated with immunotherapy and controls. METHODS Twelve patients treated with RIT and 4 untreated controls were included in the study. Any adverse events were evaluated during the incremental phase of RIT. Mononuclear cells were isolated before the start of RIT and 3 days, 1 week, 4 weeks and 3 months after the beginning of the treatment. Histamine release upon allergen stimulation, expression of CD203c and allergen-induced production of IL-4 and IL-13 by basophils were examined. RESULTS Significant decreases in blood basophil count (p = 0.02) were observed early in the treatment, returning to baseline values 1 week after the start of RIT. Similarly, histamine release decreased at day 3 (p = 0.02), but returned to pretreatment levels after 1 week. Also, the percentage of IL-4+ and IL-13+ basophils and levels of CD203c expression were markedly reduced early in the treatment. IL-4 and IL-13 production correlated with histamine release and CD203c expression. Histamine release and production of IL-4 and IL-13 by basophils before the treatment correlated with the severity of adverse events during the incremental phase of RIT. CONCLUSION We report the decrease in blood basophil numbers, their lower activation status and the reduced production of IL-4 and IL-13 early in the course of RIT. This early suppression of basophil activation could be one mechanism behind the protective effect of RIT.
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Affiliation(s)
- Halina Plewako
- Asthma and Allergy Research Group, Department of Respiratory Medicine and Allergology, Sahlgrenska University Hospital, Goteborg, Sweden
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Prescott VE, Forbes E, Foster PS, Matthaei K, Hogan SP. Mechanistic analysis of experimental food allergen-induced cutaneous reactions. J Leukoc Biol 2006; 80:258-66. [PMID: 16861616 DOI: 10.1189/jlb.1105637] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Individuals with food allergy often present with uritcaria and atopic dermatitis. Indeed, susceptibility to food allergy may predispose to the development of these cutaneous allergic disorders. Recently, we developed a model of food allergy, whereby oral consumption of food [pea Pisum sativum L.; expressing alpha-amylase inhibitor-1 (alphaAI) from the common bean Phaseolus vulgaris L. cv Tendergreen (pea-alphaAI)] promotes a T helper cell type 2 (Th2) inflammatory response and predisposes to cutaneous allergic reactions following subsequent food allergen (alphaAI) exposure. To delineate the kinetics of food allergen-induced cutaneous reactions and examine the inflammatory mechanisms involved in this allergic reaction, we used interleukin (IL)-13-, IL-4 receptor alpha-, and eotaxin-1-deficient mice and performed serum transfer and CD4+ T cell depletion studies. We demonstrate that consumption of pea-alphaAI promotes an alphaAI-specific immunoglobulin G1 (IgG1) and IgE antibody response. Furthermore, we show that subsequent food allergen (alphaAI) challenge in the skin induced an early (3 h)- and late-phase (24 h) cutaneous allergic reaction. The early-phase response was associated with mast cell degranulation and the presence of Ig, whereas the late-phase response was characterized by a lymphoid and eosinophilic infiltrate, which was critically regulated by CD4+ T cells, IL-13, and eotaxin-1. Collectively, these studies demonstrate that food allergy can predispose to cutaneous inflammatory reactions, and these processes are critically regulated by Th2 immune factors.
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Affiliation(s)
- Vanessa E Prescott
- Allergy and Inflammation Research Group, Division of Molecular Bioscience, The John Curtin School of Medical Research, Australian National University, Canberra, Australia
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HSU CHINGHSIANG, CHUA KAWYAN, HUANG SHAUKU, CHIANGI IPING, HSIEH KUEHSIUNG. Glutathione-S-transferase induces murine dermatitis that resembles human atopic dermatitis. Clin Exp Allergy 2006. [DOI: 10.1111/j.1365-2222.1996.tb00530.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Plager DA, Weiss EA, Kephart GM, Mocharla RM, Matsumoto R, Checkel JL, Schwartz LB, Gleich GJ, Leiferman KM. Identification of basophils by a mAb directed against pro-major basic protein 1. J Allergy Clin Immunol 2006; 117:626-34. [PMID: 16522463 DOI: 10.1016/j.jaci.2005.10.023] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2004] [Revised: 10/09/2005] [Accepted: 10/11/2005] [Indexed: 11/18/2022]
Abstract
BACKGROUND Basophils possess characteristics of both mast cells and eosinophils, and all 3 cell types often are found together, particularly during allergic reactions. A mAb (J175-7D4) generated against the recombinant pro-form of human eosinophil granule major basic protein 1 (rproMBP1) appeared to stain only basophils in tissue specimens. OBJECTIVE We investigated J175-7D4 to characterize its specificity for basophils. METHODS Fluid-phase immunoprecipitation, Western blotting, and immunocytochemistry and immunohistochemistry were used to establish the specificity of J175-7D4. RESULTS First, J175-7D4 binds to various glycosylated and proteolytically processed forms of rproMBP1, but not to major basic protein. Second, cells transfected with the rproMBP1 gene and human placental tissue (known to express the pro-form of major basic protein 1 [proMBP1]) stain specifically with J175-7D4. In contrast, although mature eosinophils contain substantial major basic protein, they lack proMBP1 and do not stain. Neutrophils, lymphocytes, monocytes, and skin mast cells also are not stained. However, blood basophils are stained by J175-7D4, anti-IgE, Wright-Giemsa (metachromatically), and a previously characterized basophil-specific mAb, 2D7. Finally, formaldehyde-fixed, paraffin-embedded basophils are identically detected by J175-7D4 and 2D7, and J175-7D4 also recognizes putative basophils in formaldehyde-fixed, paraffin-embedded tissue specimens from inflammatory dermatoses, such as atopic dermatitis and delayed pressure urticaria. CONCLUSION The J175-7D4 mAb recognizes proMBP1 as a novel marker for human basophils. J175-7D4 should prove useful for characterizing basophil involvement in human health and disease.
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Affiliation(s)
- Douglas A Plager
- Department of Dermatology, Mayo Clinic Rochester, MN, and Department of Internal Medicine, Virginia Commonwealth University, USA
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36
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Sturm GJ, Schuligoi R, Sturm EM, Royer JF, Lang-Loidolt D, Stammberger H, Amann R, Peskar BA, Heinemann A. 5-Oxo-6,8,11,14-eicosatetraenoic acid is a potent chemoattractant for human basophils. J Allergy Clin Immunol 2005; 116:1014-9. [PMID: 16275369 DOI: 10.1016/j.jaci.2005.08.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2005] [Revised: 06/21/2005] [Accepted: 08/01/2005] [Indexed: 11/23/2022]
Abstract
BACKGROUND 5-Oxo-6,8,11,14-eicosatetraenoic acid (5-oxo-ETE) is a chemoattractant for eosinophils and neutrophils, and the messenger RNA for its receptor, the oxo-eicosatetraenoic acid receptor (OXE), has been detected in several tissues. OBJECTIVES This study aimed at clarifying the role of 5-oxo-ETE in the regulation of basophil function. METHODS Basophil responses were determined in assays of flow-cytometric shape change, Ca(2+) flux, chemotaxis, and histamine release. Messenger RNA for OXE was detected by real-time PCR. RESULTS We observed that human eosinophils were 3 to 10 times more sensitive to 5-oxo-ETE than neutrophils in flow-cytometric shape change and Ca(2+) flux assays, as estimated from the half-maximal responses of the cells. Basophils responded to 5-oxo-ETE in the shape change assay with a sensitivity similar to that of eosinophils. 5-Oxo-ETE was a weak inducer of Ca(2+) flux in basophils and did not cause histamine release but was a highly effective chemoattractant for basophils in the low nanomolar concentration range in a pertussis toxin-sensitive manner. In agreement with these functional studies, the messenger RNA for the 5-oxo-ETE receptor, OXE, was detectable in basophils as in monocytes, eosinophils, and neutrophils, but not in fibroblasts. Specimens from sinus mucosa, tonsils, and adenoids also contained detectable levels of messenger RNA for OXE. CONCLUSION Our data suggest that 5-oxo-ETE is potentially involved in the regulation of basophil recruitment and might hence be a useful therapeutic target in atopic disease.
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Affiliation(s)
- Gunter J Sturm
- Department of Experimental and Clinical Pharmacology, Medical University of Graz, Austria
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Wong DM, Buechner-Maxwell VA, Manning TO, Ward DL. Comparison of results for intradermal testing between clinically normal horses and horses affected with recurrent airway obstruction. Am J Vet Res 2005; 66:1348-55. [PMID: 16173477 DOI: 10.2460/ajvr.2005.66.1348] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To evaluate differences in response to ID injection of histamine, phytohemagglutinin (PHA), and Aspergillus organisms between clinically normal horses and horses with recurrent airway obstruction (RAO). ANIMALS 5 healthy adult horses and 5 adult horses with RAO. PROCEDURE Intradermal testing (IDT) was performed on the neck with 2 positive control substances (histamine and PHA) and a mixture comprising 5 Aspergillus species. Four concentrations of each test substance plus a negative control substance were used. Equal volumes (0.1 mL) of each test substance were prepared to yield 15 syringes ([4 concentrations of each test substance plus 1 negative control substance] times 3 test substances) for each side of each horse (ie, 30 syringes/horse). Intradermal injections were administered; diameter of wheals was recorded 0.5, 4, and 24 hours after injection. RESULTS Hypersensitive responses to ID injection of histamine were detected 0.5 hours after injection, and a delay in wheal formation after ID injection of Aspergillus mixture 24 hours after injection was detected in RAO-affected horses but was not observed in clinically normal horses. No differences were detected between the 2 groups after ID injection of PHA. CONCLUSIONS AND CLINICAL RELEVANCE RAO-affected horses are hypersensitive to histamine, suggesting that RAO is associated with a heightened vascular response to histamine. Higher concentrations of Aspergillus mixture may be needed to detect horses that are sensitive to this group of antigens. Wheal reactions to Aspergillus may be a delayed response, suggesting that IDT results should be evaluated 0.5, 4, and 24 hours after ID injection.
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Affiliation(s)
- David M Wong
- Department of Large Animal Clinical Sciences, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Polytechnic and State University, Blacksburg, VA 24061-0442, USA
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Iikura M, Suzukawa M, Yamaguchi M, Sekiya T, Komiya A, Yoshimura-Uchiyama C, Nagase H, Matsushima K, Yamamoto K, Hirai K. 5-Lipoxygenase products regulate basophil functions: 5-Oxo-ETE elicits migration, and leukotriene B4 induces degranulation. J Allergy Clin Immunol 2005; 116:578-85. [PMID: 16159627 DOI: 10.1016/j.jaci.2005.04.029] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2004] [Revised: 04/19/2005] [Accepted: 04/21/2005] [Indexed: 10/25/2022]
Abstract
BACKGROUND 5-Lipoxygenase (5-LO) products have been strongly implicated in the pathogenesis of allergic diseases. In addition to their physiologic effects on residential cells, 5-LO products are capable of stimulating various eosinophil functions. However, little is known regarding the effects of 5-LO products on basophil functions. OBJECTIVE This study was designed to elucidate the effects of the main 5-LO products (ie, leukotriene [LT] B(4), LTD(4), and 5-oxo-6,8,11,14-eicosatetraenoic acid [5-oxo-ETE]), as well as their receptor expression on human basophils. METHODS We studied the effects of 5-LO products on Ca(2+) mobilization, migration, CD 11b expression, and degranulation of human basophils. Expression of the receptors for LTC(4)/D(4)/E(4) (cysteinyl leukotriene 1 [CysLT(1)] and CysLT(2)), LTB4 (BLT(1) and BLT(2)), and 5-oxo-ETE (oxoeicosanoid [OXE]) was assessed by means of real-time PCR and flow cytometry. RESULTS At the mRNA level, basophils strongly expressed OXE and predominantly expressed CysLT(1) and BLT(2). The expression level of OXE mRNA in basophils was approximately 20-fold higher than in neutrophils and similar to that in eosinophils. At the protein level, basophils expressed CysLT(1), CysLT(2), BLT(1), and OXE, but not BLT(2). All products elicited a transient increase of cytosolic calcium, with the order of magnitude being LTB(4)>5-oxo-ETE>LTD(4). 5-Oxo-ETE induced a strong basophil migratory response that was almost equivalent to that of prostaglandin D(2). LTB(4) elicited significant degranulation of IL-3-primed basophils. In contrast, no functional significance was observed for LTD(4). CONCLUSION Among 5-LO products, 5-oxo-ETE induces a potent basophil migratory response, and LTB(4) elicits degranulation under certain conditions. Our results strongly suggest that 5-oxo-ETE might afford opportunities for therapeutic targeting in allergic inflammation.
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Affiliation(s)
- Motoyasu Iikura
- Department of Allergy and Rheumatology, University of Tokyo School of Medicine, Tokyo, Japan
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39
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Suzukawa M, Hirai K, Iikura M, Nagase H, Komiya A, Yoshimura-Uchiyama C, Yamada H, Ra C, Ohta K, Yamamoto K, Yamaguchi M. IgE- and FcepsilonRI-mediated migration of human basophils. Int Immunol 2005; 17:1249-55. [PMID: 16103029 DOI: 10.1093/intimm/dxh301] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Local accumulation of basophils at inflammatory sites is observed in experimental antigen challenge and in allergic diseases. It is not fully known what factor(s) regulates local basophil influx in tissues, and it has not been determined whether antigens belong in a panel of basophil chemoattractants. This study was designed to elucidate whether IgE- and high-affinity receptor for IgE (FcepsilonRI)-mediated stimulation can induce human basophil migration. The migration-inducing potency of an anti-FcepsilonRI alpha-chain mAb, CRA-1, was examined on human basophils. CRA-1 mAb elicited significant migration of basophils. The migration-inducing potency of this mAb was maximal at 100 ng ml-1, and CRA-1 mAb at 100 ng ml-1 attracted approximately 10% of total inoculated basophils above baseline levels after incubation for 2.5 h. Checkerboard analysis indicated that basophil migration induced by this mAb was mainly chemotactic and partially chemokinetic. An antigen, Der f 2, also induced migration of basophils from Der f-sensitive subjects. Basophils mixed with 1 ng ml-1 of CRA-1 mAb showed an exaggerated migration response to eotaxin, indicating that FcepsilonRI cross-linkage enhances basophil migration to other chemoattractants. Induction of basophil migration by IgE- and FcepsilonRI-cross-linking stimulation may, at least in part, explain the pathogenesis of local basophil accumulation clinically observed in allergic diseases such as asthma.
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Gibbs BF, Zillikens D, Grabbe J. Nerve growth factor influences IgE-mediated human basophil activation: functional properties and intracellular mechanisms compared with IL-3. Int Immunopharmacol 2005; 5:735-47. [PMID: 15710342 DOI: 10.1016/j.intimp.2004.12.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2004] [Revised: 12/06/2004] [Accepted: 12/09/2004] [Indexed: 10/26/2022]
Abstract
NGF and IL-3 play a unique role in supporting human basophil differentiation and mediator secretion. Their importance in allergic disease is underlined further by studies showing elevated levels of these factors in asthmatics. Here, we compared the abilities of IL-3 and NGF to stimulate basophil histamine, IL-4 or IL-13 release, either directly or in conjunction with IgE-dependent stimulation and assessed the intracellular signals responsible. Our results show that the ability of IL-3 and NGF to enhance IgE-dependent histamine release are similar. Both factors also potentiated IgE-dependent IL-13 secretion to a greater degree than the release of histamine or IL-4. At high concentrations (100 ng/ml), IL-3 and NGF alone were capable of releasing cytokines but little histamine. These abilities of IL-3 and NGF to modulate basophil activation were sensitive to blockade by specific inhibitors of PI 3-kinase, p38 MAPK and PLC, but not PKC, suggesting that their effects are mediated considerably by pathways comparable to IgE-dependent signalling.
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Affiliation(s)
- Bernhard F Gibbs
- Department of Dermatology, University of Lübeck, Ratzeburger Allee 160, D-23538 Lübeck, Germany.
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Gibbs BF, Wolff HH, Zillikens D, Grabbe J. Differential Role for Mitogen-Activated Protein Kinases in IgE-Dependent Signaling in Human Peripheral Blood Basophils: In Contrast to p38 MAPK, c-Jun N-Terminal Kinase Is Poorly Expressed and Does Not Appear to Control Mediator Release. Int Arch Allergy Immunol 2005; 136:329-39. [PMID: 15741731 DOI: 10.1159/000084226] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2004] [Accepted: 11/24/2004] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Exposure of human basophils to allergens results in a rapid secretion of histamine, LTC(4), IL-4 and IL-13, which dominate both the symptomology of allergic diseases and support the underlying Th2/IgE predominance associated with these reactions. The IgE-dependent release of these mediators in basophils crucially involves PI 3-kinase and the subsequent activation of p38 MAPK and ERK1&2. Here, we investigated the role of the third major member of the mitogen activated kinase family, namely the c-Jun amino terminal kinase (JNK), which is rapidly activated following IgE receptor cross-linking in murine mast cells. METHODS Human basophils were highly purified by magnetic cell sorting. The activities of various intracellular signaling components, in basophils that had been stimulated under various conditions, were assessed by Western blotting. Mediator secretions were also determined using either spectrofluorometric analysis (histamine) or ELISA (LTC(4), IL-4 and IL-13). RESULTS Our results show that while JNK is moderately expressed in human basophils, it is not consistently phosphorylated upon anti-IgE stimulation. Phosphorylation of the transcription factor c-Jun, a downstream target of JNK, was also undetected in contrast to p38 MAPK and ERK1&2, which were clearly activated following anti-IgE stimulation of the cells. Additionally, inhibitors of the JNK pathway failed to prevent basophil mediator release and had no effect on the phosphorylation of p38 MAPK or ERK1&2 at concentrations which were specific for JNK blockade. CONCLUSIONS These data suggest major differences in utilizing various members of the mitogen-activated kinase family in the signal transduction cascade of IgE-receptor-bearing cells.
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Affiliation(s)
- Bernhard F Gibbs
- Department of Dermatology, University of Lubeck, Lubeck, Germany.
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de Paulis A, Montuori N, Prevete N, Fiorentino I, Rossi FW, Visconte V, Rossi G, Marone G, Ragno P. Urokinase induces basophil chemotaxis through a urokinase receptor epitope that is an endogenous ligand for formyl peptide receptor-like 1 and -like 2. THE JOURNAL OF IMMUNOLOGY 2004; 173:5739-48. [PMID: 15494526 DOI: 10.4049/jimmunol.173.9.5739] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Basophils circulate in the blood and are able to migrate into tissues at sites of inflammation. Urokinase plasminogen activator (uPA) binds a specific high affinity surface receptor (uPAR). The uPA-uPAR system is crucial for cell adhesion and migration, and tissue repair. We have investigated the presence and function of the uPA-uPAR system in human basophils. The expression of uPAR was found at both mRNA and protein levels. The receptor was expressed on the cell surface of basophils, in the intact and cleaved forms. Basophils did not express uPA at either the protein or mRNA level. uPA (10(-12)-10(-9) M) and its uPAR-binding N-terminal fragment (ATF) were potent chemoattractants for basophils, but did not induce histamine or cytokine release. Inactivation of uPA enzymatic activity by di-isopropyl fluorophosphate did not affect its chemotactic activity. A polyclonal Ab against uPAR inhibited uPA-dependent basophil chemotaxis. The uPAR-derived peptide 84-95 (uPAR84-95) induced basophil chemotaxis. Basophils expressed mRNA for the formyl peptide receptors formyl peptide receptor (FPR), FPR-like 1 (FPRL1), and FPRL2. The FPR antagonist cyclosporin H prevented chemotaxis induced by FMLP, but not that induced by uPA and uPAR84-95. Incubation of basophils with low and high concentrations of FMLP, which desensitize FPR and FPRL1, respectively, but not FPRL2, slightly reduced the chemotactic response to uPA and uPAR84-95. In contrast, desensitization with WKYMVm, which also binds FPRL2, markedly inhibited the response to both molecules. Thus, uPA is a potent chemoattractant for basophils that seems to act through exposure of the chemotactic uPAR epitope uPAR84-95, which is an endogenous ligand for FPRL2 and FPRL1.
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MESH Headings
- Adult
- Basophils/cytology
- Basophils/enzymology
- Basophils/metabolism
- Cell Line, Tumor
- Chemotaxis, Leukocyte/immunology
- Cytokines/metabolism
- Enzyme Inhibitors/pharmacology
- Epitopes/metabolism
- Epitopes/physiology
- Histamine Release/drug effects
- Histamine Release/immunology
- Humans
- Hydrolysis
- Isoflurophate/pharmacology
- Ligands
- Peptide Fragments/physiology
- Protein Structure, Tertiary
- RNA, Messenger/biosynthesis
- Receptors, Cell Surface/biosynthesis
- Receptors, Cell Surface/metabolism
- Receptors, Cell Surface/physiology
- Receptors, Formyl Peptide/biosynthesis
- Receptors, Formyl Peptide/metabolism
- Receptors, Lipoxin/biosynthesis
- Receptors, Lipoxin/metabolism
- Receptors, Urokinase Plasminogen Activator
- Urokinase-Type Plasminogen Activator/antagonists & inhibitors
- Urokinase-Type Plasminogen Activator/biosynthesis
- Urokinase-Type Plasminogen Activator/physiology
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Affiliation(s)
- Amato de Paulis
- Divisione di Immunologia Clinica ed Allergologia, Università di Napoli Federico II, Naples, Italy
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Hartnell A, Heinemann A, Conroy DM, Wait R, Sturm GJ, Caversaccio M, Jose PJ, Williams TJ. Identification of Selective Basophil Chemoattractants in Human Nasal Polyps as Insulin-Like Growth Factor-1 and Insulin-Like Growth Factor-2. THE JOURNAL OF IMMUNOLOGY 2004; 173:6448-57. [PMID: 15528386 DOI: 10.4049/jimmunol.173.10.6448] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
In a search for novel leukocyte chemoattractants at sites of allergic inflammation, we found basophil-selective chemoattractant activity in extracts of human nasal polyps. The extracts were fractionated by reverse phase HPLC, and the resulting fractions were tested for leukocyte-stimulating activity using sensitive shape change assays. The basophil-selective activity detected was not depleted by a poxvirus CC-chemokine-binding protein affinity column. This activity was further purified by HPLC, and proteins in the bioactive fractions were analyzed by tandem electrospray mass spectrometry. Insulin-like growth factor-2 (IGF-2) was identified in these HPLC fractions, and the basophil-stimulating activity was inhibited by an anti-IGF-2-neutralizing Ab. Recombinant IGF-2 induced a substantial shape change response in basophils, but not eosinophils, neutrophils, or monocytes. IGF-2 stimulated chemokinesis of basophils, but not eosinophils or neutrophils, and synergized with eotaxin-1/CCL11 in basophil chemotaxis. IGF-2 also caused up-regulation of basophil CD11b expression and inhibited apoptosis, but did not stimulate degranulation or Ca(2+) flux. Recombinant IGF-1 exhibited similar basophil-selective effects as IGF-2, and both growth factors were detected in nasal polyp extracts by ELISA. This is the first demonstration of chemokinetic factors that increase the motility of basophils, but do not act on other granulocytes or monocytes. IGF-1 and IGF-2 could play a role in the selective recruitment of basophils in vivo.
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Affiliation(s)
- Adele Hartnell
- Leukocyte Biology Section, Biomedical Science Division, Faculty of Medicine, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
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Iikura M, Ebisawa M, Yamaguchi M, Tachimoto H, Ohta K, Yamamoto K, Hirai K. Transendothelial migration of human basophils. THE JOURNAL OF IMMUNOLOGY 2004; 173:5189-95. [PMID: 15470064 DOI: 10.4049/jimmunol.173.8.5189] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
During allergic reactions, basophils migrate from the blood compartment to inflammatory sites, where they act as effector cells in concert with eosinophils. Because transendothelial migration (TEM) represents an essential step for extravasation of cells, for the first time we have studied basophil TEM using HUVEC. Treatment of HUVEC with IL-1beta significantly enhanced basophil TEM, which was further potentiated by the presence of a CCR3-specific ligand, eotaxin/CCL11. In addition to CCR3 ligands, MCP-1/CCL2 was also active on basophil TEM. Although stromal cell-derived factor-1/CXCL12, a CXCR4 ligand, failed to induce TEM in freshly isolated basophils, it caused strong TEM in 24-h cultured cells. IL-3 enhanced basophil TEM by increasing the chemokinetic response. Spontaneous TEM across activated HUVEC was inhibited by treatment of cells with anti-CD18 mAb, but not with anti-CD29 mAb, and also by treatment of HUVEC with anti-ICAM-1 mAb. Anti-VCAM-1 mAb alone failed to inhibit TEM, but showed an additive inhibitory effect in combination with anti-ICAM-1 mAb. In contrast, eotaxin- and IL-3-mediated TEM was significantly inhibited by anti-CD29 mAb as well as anti-CD18 mAb. These results indicate that beta2 integrins play the primary role in basophil TEM, but beta1 integrins are also involved, especially in TEM of cytokine/chemokine-stimulated basophils. In conclusion, the regulatory profile of basophil TEM is very similar to that reported for eosinophils. Our results thus support the previous argument for a close relationship between basophils and eosinophils and suggest that the in vivo kinetics of these two cell types are similar.
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Affiliation(s)
- Motoyasu Iikura
- Department of Allergy and Rheumatology, University of Tokyo Graduate School of Medicine, Hongo, Bunkyo-ku, Japan.
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Yoshimura-Uchiyama C, Iikura M, Yamaguchi M, Nagase H, Ishii A, Matsushima K, Yamamoto K, Shichijo M, Bacon KB, Hirai K. Differential modulation of human basophil functions through prostaglandin D2 receptors DP and chemoattractant receptor-homologous molecule expressed on Th2 cells/DP2. Clin Exp Allergy 2004; 34:1283-90. [PMID: 15298571 DOI: 10.1111/j.1365-2222.2004.02027.x] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND Both prostaglandin (PG) D receptor (DP) and CRTH2 (chemoattractant receptor-homologous molecule expressed on Th2 cells)/DP2 are high-affinity receptors for PGD2. Previous studies have demonstrated that PGD2 enhances releasability and induces CRTH2/DP2-mediated migration in human basophils, but the precise effects of PGD2 on basophils as well as receptor usage have not been fully clarified. OBJECTIVE We comprehensively explored the roles of DP and CRTH2/DP2 in basophil functions by using selective agonists and antagonists for each receptor. METHODS DP and CRTH2/DP2 transcripts were quantified by real-time PCR. We studied the effects of selective agonists (DP: BW245C; CRTH2/DP2: 13,14-dihydro-15-keto (DK)-PGD2) and/or antagonists (DP: BWA868C; CRTH2/DP2: ramatroban) on Ca2+ mobilization, migration, degranulation, CD11b expression and survival of human basophils. RESULTS Basophils expressed transcripts of both DP and CRTH2/DP2, but the levels of CRTH2/DP2 transcripts were ca. 100-fold higher compared with DP transcripts. Ca2+ influx was induced in basophils by either PGD2 or DK-PGD2/CRTH2 agonist but not by BW245C/DP agonist. Basophils treated with PGD2 were completely desensitized to subsequent stimulation with DK-PGD2, but not vice versa. DK-PGD2 as well as PGD2 up-regulated CD11b expression, induced migration and enhanced degranulation, and those effects were completely antagonized by ramatroban/CRTH2 antagonist. In contrast, BW245C/DP agonist exhibited an inhibitory effect on basophil migration and IgE-mediated degranulation, and the migration inhibitory effect was effectively antagonized by BWA868C/DP antagonist. On the other hand, while PGD2 significantly shortened the basophil life-span, neither DK-PGD2/CRTH2 agonist nor BW245C/DP agonist did. CONCLUSION CRTH2/DP2 is primarily responsible for the pro-inflammatory effects of PGD2 on human basophils, while DP introduces negative signals capable of antagonizing the effects of CRTH2/DP2 in these cells. The effects of PGD2 on longevity imply a mechanism(s) other than via DP or CRTH2/DP2. CRTH2/DP2 on basophils may afford opportunities for therapeutic targeting in allergic inflammation.
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Affiliation(s)
- C Yoshimura-Uchiyama
- Department of Allergy and Rheumatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
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de Paulis A, Prevete N, Fiorentino I, Walls AF, Curto M, Petraroli A, Castaldo V, Ceppa P, Fiocca R, Marone G. Basophils Infiltrate Human Gastric Mucosa at Sites of Helicobacter pylori Infection, and Exhibit Chemotaxis in Response to H. pylori-derived Peptide Hp(2–20). THE JOURNAL OF IMMUNOLOGY 2004; 172:7734-43. [PMID: 15187157 DOI: 10.4049/jimmunol.172.12.7734] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Basophils, which are normally confined to the circulation, can migrate to sites of allergic inflammation. Using the specific mAb, BB1, we detected basophil infiltration of the gastric mucosa of Helicobacter pylori-infected patients affected by moderate and severe gastritis. Basophils were not found in H. pylori-free individuals or in subjects with mild gastritis. The H. pylori-derived peptide, Hp(2-20), was a potent basophil chemoattractant in vitro, whereas the control peptide, Hp1, was ineffective. Basophils from peripheral blood of healthy volunteers expressed mRNA for the formyl peptide receptors, N-formyl-peptide receptor (FPR), FPR-like (FPRL)1, and FPRL2. Preincubation of basophils with FMLP or Hp(2-20) caused complete desensitization to a subsequent challenge with homologous stimulus. Incubation of basophils with a low concentration of FMLP, which binds with high affinity to FPR, but not to FPRL1 or FPRL2, did not affect the chemotactic response to Hp(2-20). In contrast, a high concentration of FMLP, which binds to FPRL1 and FPRL2, reduced the chemotactic response to Hp(2-20). The FPR antagonist, cyclosporin H, prevented chemotaxis induced by FMLP, but not by Hp(2-20). Hp(2-20) could be responsible, at least in part, for basophil infiltration of the gastric mucosa of H. pylori-infected patients presumably through the interaction with FPRL1 and FPRL2.
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Affiliation(s)
- Amato de Paulis
- Department of Clinical Immunology and Allergy, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy
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Hirai H. [Prostaglandin D2 in allergy: PGD2 has dual receptor systems]. Nihon Yakurigaku Zasshi 2004; 123:15-22. [PMID: 14695454 DOI: 10.1254/fpj.123.15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Allergic inflammations feature an accumulation of T helper 2 (Th2) cells, eosinophils, and basophils into the inflamed sites and are often triggered by antigen-IgE mediated activation of mast cells that secret a variety of mediators. Therefore, the mast cell is known as a conductor cell in allergic inflammations. Prostaglandin (PG) D(2) is the major prostanoid secreted from the activated mast cell and has long been implicated in allergic diseases. The involvement of PGD(2) in allergic inflammation has been corroborated by several studies. Two PGD(2) receptors are known as the DP receptor and CRTH2. CRTH2 differs from DP in its signal pathways: CRTH2 is coupled with Gi-type G protein and DP is coupled with Gs-type G protein. It was reported that DP-deficient mice subjected to ovalbumin-induced asthma model systems showed suppressed allergic reactions. Functions of CRTH2 in vivo have not been clear, but CRTH2 mediates PGD(2)-dependent cell migration and the activation of Th2 cells, eosinophils, and basophils. Therefore, the CRTH2 signal seems to promote allergic disease. The findings from these in vivo and vitro studies suggest that PGD(2) secreted from activated mast cells may be involved in the formation and/or maintenance of allergic inflammations through its dual receptor systems.
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Affiliation(s)
- Hiroyuki Hirai
- Department of Advanced Medicine and Development, BML, Inc., Kawagoe, Saitama, Japan
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Abstract
Nasal obstruction is an important symptom of rhinitis. The present article presents the inflammatory mechanisms that lead to the clinical presentation of this symptom: conchal vasodilation, infiltration of mainly eosinophilic cells with activation of these cells and release of intracellular mediators. Given the importance of this symptom and its effects both on function and on quality of life, the various methods used to study it are discussed. Active anterior rhinometry (AAR), measurement of nasal peak inspiratory flow (NPIF), and acoustic rhinometry (AR) are discussed. The underlying principles, based on the trajectory of nasal air flow, techniques, and their advantages and disadvantages are presented. In conclusion, any of these methods can be used to evaluate nasal obstruction.
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Marone G, Granata F, Spadaro G, Genovese A, Triggiani M. The histamine-cytokine network in allergic inflammation. J Allergy Clin Immunol 2003; 112:S83-8. [PMID: 14530793 DOI: 10.1016/s0091-6749(03)01881-5] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Histamine is synthesized and released by human basophils, mast cells, and neurons. Its pleiotropic effects are mediated by the activation of 4 receptors: H(1), H(2), H(3), and H(4). With the advent of selective antagonists (the antihistamines widely used to treat allergic disorders), the H(1)-receptor was the first member of the receptor family to be pharmacologically defined. Increasing evidence indicates that, in addition to exerting immediate vascular and bronchial responses, histamine might modulate the immune reaction by interacting with T cells, macrophages, basophils, eosinophils, and monocytes. We have shown that, in vitro, histamine induces a concentration-dependent release of IL-6 and beta-glucuronidase from macrophages isolated from the human lung parenchyma. These effects are inhibited by fexofenadine, an H(1)-receptor antagonist, but not by ranitidine, an H(2)-receptor antagonist. This observation raises the possibility that long-term treatment with fexofenadine might have beneficial effects on immune dysregulation and tissue damage/remodeling associated with histamine-mediated macrophage activation.
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Affiliation(s)
- Gianni Marone
- Division of Clinical Immunology and Allergy, University of Naples Federico II, School of Medicine, Naples, Italy
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Abstract
Histamine-releasing factor or HRF is a collective term used for a heterogeneous group of factors with different modes of action. The current review is focussed on IgE-dependent HRF that require the presence of certain types of IgE (designated IgE+) to induce histamine release. IgE+ might be a structurally different IgE molecule, or, alternatively, autoreactive IgE. A subgroup of IgE-dependent HRF does not bind to IgE, such as cloned HRF p23. This factor turned out to be a basophil-priming cytokine. Alternatively IgE-dependent HRF might be an autoallergen. Several groups demonstrated IgE antibodies to human proteins. However, not all IgE autoallergen-containing extracts induce histamine release of appropriately sensitized basophils. In culture supernatants of human mononuclear cells an autoallergenic activity (Agmn) is found, but no binding to IgE+ was found yet. Agmn might be an autoallergen, since it is cross-reactive with a grass pollen allergen in the stripped basophil assay. IgE-dependent HRF and IgE+ may play a role in the late allergic reaction (LAR). However, IgE+ responsiveness to Agmn (IgEmn+) was not required for a bronchial LAR. IgEmn+ is associated with chronic allergic disease, since the prevalence of IgEmn+ is high in the serum of severe asthmatics and atopic dermatitis patients. Our hypothesis is that exogenous allergens induce IgE antibodies cross-reactive with an endogenous protein. During a LAR, these endogenous proteins are released and the subsequent IgE-mediated reaction prolongs and aggravates the allergic and/or asthmatic symptoms. In conclusion, HRF is a confusing term since it is used for different activities. It might be better to avoid this terminology on and just describe the activity of the factors. Autoallergenic activity is likely to explain most, if not all, IgE-dependent activity.
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Affiliation(s)
- I Kleine Budde
- Department of Immunopathology, Sanquin Research at CLB, Amsterdam, The Netherlands.
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