Secreted IgD Amplifies Humoral T Helper 2 Cell Responses by Binding Basophils via Galectin-9 and CD44.
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Shan M
Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Mucosal Immunology Studies Team (MIST), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20982, USA.
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Carrillo J
Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Institut de Recerca de la SIDA-IrsiCaixa-HIVACAT, IGTP, UAB, 08916 Badalona, Barcelona, Spain.
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Yeste A
Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), 08003 Barcelona, Spain.
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Gutzeit C
Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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Segura-Garzón D
Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), 08003 Barcelona, Spain.
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Walland AC
Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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Pybus M
Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), 08003 Barcelona, Spain.
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Grasset EK
Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Medicine, Center for Molecular Medicine, Karolinska Institutet, Karolinska University Hospital, 171 77 Stockholm, Sweden.
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Yeiser JR
Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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Matthews DB
Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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van de Veen W
Swiss Institute of Allergy and Asthma Research, University of Zurich, Christine-Kühne Research Center for Allergy and Education, 7270 Davos, Switzerland.
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Comerma L
Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), 08003 Barcelona, Spain.
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He B
Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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Boonpiyathad T
Swiss Institute of Allergy and Asthma Research, University of Zurich, Christine-Kühne Research Center for Allergy and Education, 7270 Davos, Switzerland.
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Lee H
Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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Blanco J
Institut de Recerca de la SIDA-IrsiCaixa-HIVACAT, IGTP, UAB, 08916 Badalona, Barcelona, Spain; University of Vic, UVIC-UCC, 08500 Vic, Barcelona, Spain.
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Osborne LC
Department of Medicine, Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Medical College of Cornell University, New York, NY 10021, USA.
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Siracusa MC
Department of Medicine, Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ 07103, USA.
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Akdis M
Swiss Institute of Allergy and Asthma Research, University of Zurich, Christine-Kühne Research Center for Allergy and Education, 7270 Davos, Switzerland.
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Artis D
Mucosal Immunology Studies Team (MIST), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20982, USA; Department of Medicine, Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Medical College of Cornell University, New York, NY 10021, USA.
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Mehandru S
Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Gastroenterology, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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Sampson HA
Division of Pediatric Allergy and Immunology, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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Berin MC
Division of Pediatric Allergy and Immunology, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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Chen K
Mucosal Immunology Studies Team (MIST), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20982, USA; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA.
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Cerutti A
Department of Medicine, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Mucosal Immunology Studies Team (MIST), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20982, USA; Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), 08003 Barcelona, Spain; Catalan Institute for Research and Advanced Studies (ICREA), 08003 Barcelona, Spain. Electronic address: acerutti@imim.es.
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English
B cells thwart antigenic aggressions by releasing immunoglobulin M (IgM), IgG, IgA, and IgE, which deploy well-understood effector functions. In contrast, the role of secreted IgD remains mysterious. We found that some B cells generated IgD-secreting plasma cells following early exposure to external soluble antigens such as food proteins. Secreted IgD targeted basophils by interacting with the CD44-binding protein galectin-9. When engaged by antigen, basophil-bound IgD increased basophil secretion of interleukin-4 (IL-4), IL-5, and IL-13, which facilitated the generation of T follicular helper type 2 cells expressing IL-4. These germinal center T cells enhanced IgG1 and IgE but not IgG2a and IgG2b responses to the antigen initially recognized by basophil-bound IgD. In addition, IgD ligation by antigen attenuated allergic basophil degranulation induced by IgE co-ligation. Thus, IgD may link B cells with basophils to optimize humoral T helper type 2-mediated immunity against common environmental soluble antigens.
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bronze
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https://sonar.ch/global/documents/30462
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