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Nakashima C, Otsuka A, Kabashima K. Recent advancement in the mechanism of basophil activation. J Dermatol Sci 2018; 91:3-8. [PMID: 29602578 DOI: 10.1016/j.jdermsci.2018.03.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 03/07/2018] [Accepted: 03/08/2018] [Indexed: 12/21/2022]
Abstract
Basophils have been recognized as crucial players in allergic inflammation. Basophils have the potential to initiate and expand inflammation through the production of specific cytokines and proteases, and are associated with T helper 2 (Th2) immune responses. In addition, recent studies revealed the heterogeneity in basophil populations. Basophils have been clarified important roles in not only IgE-mediated allergic inflammation but also TSLP-mediated and IgE-independent inflammation. Moreover, basophils infiltrate in many human cutaneous diseases. Basophils are responsible for recruiting other inflammatory cells such as macrophages, eosinophils, and fibroblasts. In this review, we discuss recent advances in our understanding of basophil activation and migration in allergic inflammation.
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Affiliation(s)
- Chisa Nakashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Atsushi Otsuka
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan; Translational Research Department for Skin and Brain Diseases, Kyoto University Graduate School of Medicine, Kyoto, Japan.
| | - Kenji Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan; Singapore Immunology Network (SIgN) and Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore.
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Otsuka A, Kabashima K. Contribution of Basophils to Cutaneous Immune Reactions and Th2-Mediated Allergic Responses. Front Immunol 2015; 6:393. [PMID: 26284076 PMCID: PMC4522869 DOI: 10.3389/fimmu.2015.00393] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Accepted: 07/19/2015] [Indexed: 11/13/2022] Open
Abstract
Basophils are potent effector cells of innate immunity and also play a role in T helper 2 (Th2)-mediated allergic responses. But, although their in vitro functions are well studied, their in vivo functions remain largely unknown. However, several mouse models of basophil depletion have recently been developed and used to investigate basophil functions. For example, in a croton oil-induced model of irritant contact dermatitis in conditionally basophil-depleted transgenic mice, we found that basophils rapidly infiltrate inflamed skin and subsequently induce infiltration of eosinophils. We also showed that basophils induce Th2 skewing upon epicutaneous sensitization with various haptens and peptide antigens. Intriguingly, basophils also promoted Th2 polarization upon protein antigen exposure in the presence of dendritic cells (DCs). The dermal DC subset associated with Th2 skewing was recently identified as CD301b+ DC. Such studies with basophil-deficient mouse models have significantly improved our understanding of the mechanisms involved in human immune-related diseases. In this review, we will focus on the relative contribution of basophils and DCs to Th2-mediated allergic responses.
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Affiliation(s)
- Atsushi Otsuka
- Department of Dermatology, Kyoto University Graduate School of Medicine , Kyoto , Japan
| | - Kenji Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine , Kyoto , Japan ; PRESTO, Japan Science and Technology Agency , Kawaguchi, Saitama , Japan
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Cheng LE, Sullivan BM, Retana LE, Allen CDC, Liang HE, Locksley RM. IgE-activated basophils regulate eosinophil tissue entry by modulating endothelial function. ACTA ACUST UNITED AC 2015; 212:513-24. [PMID: 25779634 PMCID: PMC4387286 DOI: 10.1084/jem.20141671] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 02/11/2015] [Indexed: 01/22/2023]
Abstract
Basophils orchestrate eosinophil recruitment during IgE-dependent dermatitis by interacting with inflamed endothelium and producing IL-4. IL-4 in turn induces endothelial VCAM-1 expression, which is required for subsequent eosinophil accumulation. Vertebrate immunity has evolved a modular architecture in response to perturbations. Allergic inflammation represents such a module, with signature features of antigen-specific IgE and tissue eosinophilia, although the cellular and molecular circuitry coupling these responses remains unclear. Here, we use genetic and imaging approaches in models of IgE-dependent eosinophilic dermatitis to demonstrate a requisite role for basophils. After antigenic inflammation, basophils initiate transmigration like other granulocytes but, upon activation via their high-affinity IgE receptor, alter their migratory kinetics to persist at the endothelium. Prolonged basophil–endothelial interactions, in part dependent on activation of focal adhesion kinases, promote delivery of basophil-derived IL-4 to the endothelium and subsequent induction of endothelial vascular cell adhesion molecule-1 (VCAM-1), which is required for eosinophil accumulation. Thus, basophils are gatekeepers that link adaptive immunity with innate effector programs by altering access to tissue sites by activation-induced interactions with the endothelium.
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Affiliation(s)
- Laurence E Cheng
- Department of Pediatrics, Department of Medicine, Department of Anatomy, Sandler Asthma Basic Research Center, Cardiovascular Research Institute, Department of Microbiology and Immunology, and Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94143 Department of Pediatrics, Department of Medicine, Department of Anatomy, Sandler Asthma Basic Research Center, Cardiovascular Research Institute, Department of Microbiology and Immunology, and Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94143
| | - Brandon M Sullivan
- Department of Pediatrics, Department of Medicine, Department of Anatomy, Sandler Asthma Basic Research Center, Cardiovascular Research Institute, Department of Microbiology and Immunology, and Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94143
| | - Lizett E Retana
- Department of Pediatrics, Department of Medicine, Department of Anatomy, Sandler Asthma Basic Research Center, Cardiovascular Research Institute, Department of Microbiology and Immunology, and Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94143
| | - Christopher D C Allen
- Department of Pediatrics, Department of Medicine, Department of Anatomy, Sandler Asthma Basic Research Center, Cardiovascular Research Institute, Department of Microbiology and Immunology, and Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94143 Department of Pediatrics, Department of Medicine, Department of Anatomy, Sandler Asthma Basic Research Center, Cardiovascular Research Institute, Department of Microbiology and Immunology, and Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94143 Department of Pediatrics, Department of Medicine, Department of Anatomy, Sandler Asthma Basic Research Center, Cardiovascular Research Institute, Department of Microbiology and Immunology, and Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94143
| | - Hong-Erh Liang
- Department of Pediatrics, Department of Medicine, Department of Anatomy, Sandler Asthma Basic Research Center, Cardiovascular Research Institute, Department of Microbiology and Immunology, and Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94143
| | - Richard M Locksley
- Department of Pediatrics, Department of Medicine, Department of Anatomy, Sandler Asthma Basic Research Center, Cardiovascular Research Institute, Department of Microbiology and Immunology, and Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94143 Department of Pediatrics, Department of Medicine, Department of Anatomy, Sandler Asthma Basic Research Center, Cardiovascular Research Institute, Department of Microbiology and Immunology, and Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94143 Department of Pediatrics, Department of Medicine, Department of Anatomy, Sandler Asthma Basic Research Center, Cardiovascular Research Institute, Department of Microbiology and Immunology, and Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94143 Department of Pediatrics, Department of Medicine, Department of Anatomy, Sandler Asthma Basic Research Center, Cardiovascular Research Institute, Department of Microbiology and Immunology, and Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94143
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Nakashima C, Otsuka A, Kitoh A, Honda T, Egawa G, Nakajima S, Nakamizo S, Arita M, Kubo M, Miyachi Y, Kabashima K. Basophils regulate the recruitment of eosinophils in a murine model of irritant contact dermatitis. J Allergy Clin Immunol 2014; 134:100-7. [PMID: 24713170 DOI: 10.1016/j.jaci.2014.02.026] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Revised: 02/10/2014] [Accepted: 02/12/2014] [Indexed: 12/14/2022]
Abstract
BACKGROUND Although eosinophils have been detected in several human skin diseases in the vicinity of basophils, how eosinophils infiltrate the skin and the role of eosinophils in the development of skin inflammation have yet to be examined. OBJECTIVE Using murine irritant contact dermatitis (ICD) as a model, we sought to clarify the roles of eosinophils in ICD and the underlying mechanism of eosinophil infiltration of the skin. METHODS We induced croton oil-induced ICD in eosinophil-deficient ΔdblGATA mice with or without a reactive oxygen species (ROS) inhibitor. We performed cocultivation with fibroblasts and bone marrow-derived basophils and evaluated eosinophil migration using a chemotaxis assay. RESULTS ICD responses were significantly attenuated in the absence of eosinophils or by treatment with the ROS inhibitor. ROS was produced abundantly by eosinophils, and both basophils and eosinophils were detected in human and murine ICD skin lesions. In coculture experiments, basophils attracted eosinophils, especially in the presence of fibroblasts. Moreover, basophils produced IL-4 and TNF-α in contact with fibroblasts and promoted the expression of eotaxin/CCL11 from fibroblasts in vitro. CONCLUSION Eosinophils mediated the development of murine ICD, possibly through ROS production. Recruitment of eosinophils into the skin was induced by basophils in cooperation with fibroblasts. Our findings introduce the novel concept that basophils promote the recruitment of eosinophils into the skin through fibroblasts in the development of skin inflammation.
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Affiliation(s)
- Chisa Nakashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Atsushi Otsuka
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan.
| | - Akihiko Kitoh
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tetsuya Honda
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Gyohei Egawa
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Saeko Nakajima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Satoshi Nakamizo
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Makoto Arita
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan
| | - Masato Kubo
- Laboratory for Cytokine Regulation, Integrative Medical Science (IMS), RIKEN Yokohama Institute, Kanagawa, Japan; Division of Molecular Pathology, Research Institute for Biomedical Science, Tokyo University of Science, Chiba, Japan
| | - Yoshiki Miyachi
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kenji Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan.
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