Search for authorsSearch for similar articles
179
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      B–helper neutrophils stimulate immunoglobulin diversification and production in the marginal zone of the spleen

      research-article
      1 , 2 , 1 , 2 , 1 , 1 , 3 , 2 , 2 , 2 , 1 , 4 , 4 , 5 , 6 , 3 , 7 , 3 , 3 , 3 , 3 , 3 , 8 , 9 , 10 , 10 , 11 , 12 , 13 , 14 , 2 , 15 , 16 , 2 , 17 , 17 , 18 , 19 , 19 , 20 , 21 , 22 , 22 , 23 , 23 , 23 , 24 , 25 , 2 , 1 , 2 , 26
      Nature Immunology

      Read this article at

      ScienceOpenPublisherPMC
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Neutrophils utilize immunoglobulins (Igs) to clear antigen, but their role in Ig production is unknown. Here we identified neutrophils around the marginal zone (MZ) of the spleen, a B cell area specialized in T-independent Ig responses to circulating antigen. Neutrophils colonized peri-MZ areas after post-natal mucosal colonization by microbes and enhanced their B-helper function upon receiving reprogramming signals from splenic sinusoidal endothelial cells, including interleukin 10 (IL-10). Splenic neutrophils induced Ig class switching, somatic hypermutation and antibody production by activating MZ B cells through a mechanism involving the cytokines BAFF, APRIL and IL-21. Neutropenic patients had fewer and hypomutated MZ B cells and less preimmune Igs to T-independent antigens, which indicates that neutrophils generate an innate layer of antimicrobial Ig defense by interacting with MZ B cells.

          Related collections

          Most cited references35

          • Record: found
          • Abstract: found
          • Article: not found

          Class switch recombination and hypermutation require activation-induced cytidine deaminase (AID), a potential RNA editing enzyme.

          Induced overexpression of AID in CH12F3-2 B lymphoma cells augmented class switching from IgM to IgA without cytokine stimulation. AID deficiency caused a complete defect in class switching and showed a hyper-IgM phenotype with enlarged germinal centers containing strongly activated B cells before or after immunization. AID-/- spleen cells stimulated in vitro with LPS and cytokines failed to undergo class switch recombination although they expressed germline transcripts. Immunization of AID-/- chimera with 4-hydroxy-3-nitrophenylacetyl (NP) chicken gamma-globulin induced neither accumulation of mutations in the NP-specific variable region gene nor class switching. These results suggest that AID may be involved in regulation or catalysis of the DNA modification step of both class switching and somatic hypermutation.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            The growth factor progranulin binds to TNF receptors and is therapeutic against inflammatory arthritis in mice.

            The growth factor progranulin (PGRN) has been implicated in embryonic development, tissue repair, tumorigenesis, and inflammation, but its receptors remain unidentified. We report that PGRN bound directly to tumor necrosis factor receptors (TNFRs) and disturbed the TNFα-TNFR interaction. PGRN-deficient mice were susceptible to collagen-induced arthritis, and administration of PGRN reversed inflammatory arthritis. Atsttrin, an engineered protein composed of three PGRN fragments, exhibited selective TNFR binding. PGRN and Atsttrin prevented inflammation in multiple arthritis mouse models and inhibited TNFα-activated intracellular signaling. Collectively, these findings demonstrate that PGRN is a ligand of TNFR, an antagonist of TNFα signaling, and plays a critical role in the pathogenesis of inflammatory arthritis in mice. They also suggest new potential therapeutic interventions for various TNFα-mediated pathologies and conditions, including rheumatoid arthritis.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Maintenance of serological memory by polyclonal activation of human memory B cells.

              Production of antibodies can last for a lifetime, through mechanisms that remain poorly understood. Here, we show that human memory B lymphocytes proliferate and differentiate into plasma cells in response to polyclonal stimuli, such as bystander T cell help and CpG DNA. Furthermore, plasma cells secreting antibodies to recall antigens are produced in vivo at levels proportional to the frequency of specific memory B cells, even several years after antigenic stimulation. Although antigen boosting leads to a transient increase in specific antibody levels, ongoing polyclonal activation of memory B cells offers a means to maintain serological memory for a human lifetime.
                Bookmark

                Author and article information

                Journal
                100941354
                21750
                Nat Immunol
                Nat. Immunol.
                Nature Immunology
                1529-2908
                1529-2916
                6 December 2011
                25 December 2011
                01 August 2012
                : 13
                : 2
                : 170-180
                Affiliations
                [1 ]Institut Municipal d'Investigació Mèdica-Hospital del Mar, Barcelona, Spain
                [2 ]Immunology Institute, Mount Sinai School of Medicine, New York, New York, USA
                [3 ]Department of Pathology, Hospital del Mar, Universitat Autònoma de Barcelona and Universitat Pompeu Fabra, Barcelona, Spain
                [4 ]Department of Pathology and Laboratory Medicine, Weill Medical College of Cornell University, New York, New York, USA
                [5 ]Department of Pathology, Brigham and Woman's Hospital, Harvard Medical School, Boston, Massachusetts, USA
                [6 ]Department of Pediatrics, Weill Cornell Medical College, New York, New York, USA
                [7 ]Department of Urology, Hospital del Mar, Barcelona, Spain
                [8 ]Department of Pediatric Hematology and Oncology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
                [9 ]Department of Pathology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
                [10 ]Department of Hematology, Hospital Sant Joan de Déu de Barcelona, Barcelona, Spain
                [11 ]Department of Pediatrics, Hospital Sant Joan de Déu de Barcelona, Barcelona, Spain
                [12 ]Department of Pathology, Hospital Sant Joan de Déu de Barcelona, Barcelona, Spain
                [13 ]Children Hematology Unit, Hospital de la Fe, Valencia, Spain
                [14 ]Department of Genetics and Genomic Sciences, Mount Sinai School of Medicine, New York, New York, USA
                [15 ]Unit of Immunodeficiency, Hospital Erasme-ULB, Brussels, Belgium
                [16 ]Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA
                [17 ]Hematology Unit, G. Gaslini Children's Institute, Genova, Italy
                [18 ]Oncohematology and Bone Marrow Transplantation Unit, Children's Hospital, Brescia, Italy
                [19 ]Pediatric Clinic and Institute of Molecular Medicine “A. Nocivelli”,University of Brescia and Children's Hospital, Brescia, Italy
                [20 ]St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, New York, USA
                [21 ]Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de Santé et de la Recherche Médicale U550 and Necker-Enfants Malades Medical School, Paris, France
                [22 ]Institute of Medical Microbiology & Hygiene, University of Freiburg, Freiburg, Germany
                [23 ]Immunology Service, Hospital Clínic of Barcelona, Barcelona, Spain
                [24 ]CEREDIH, The French National Reference Center for Primary Immune Deficiencies and Paediatric Haematology-Immunolgy and Rheumatology Unit, Hôpital Necker-Enfants Malades, Paris, France
                [25 ]Service d'Hémato Oncologie Pédiatrique, Registre des Neutropénies Congénitales, Hôpital Trousseau, Paris, France
                [26 ]Catalan Institute for Research and Advanced Studies, Barcelona Biomedical Research Park, Barcelona, Spain
                Author notes
                [27]

                These authors contributed equally to this work.

                Correspondence should be addressed to A.C ( acerutti@ 123456imim.es or andrea.cerutti@ 123456mssm.edu ).
                Article
                NIHMS340279
                10.1038/ni.2194
                3262910
                22197976
                e4d664b3-3031-437d-a681-42c51f40e5f7

                Users may view, print, copy, download and text and data- mine the content in such documents, for the purposes of academic research, subject always to the full Conditions of use: http://www.nature.com/authors/editorial_policies/license.html#terms

                History
                Funding
                Funded by: National Institute of Allergy and Infectious Diseases Extramural Activities : NIAID
                Award ID: U01 AI095613-01 || AI
                Funded by: National Institute of Allergy and Infectious Diseases Extramural Activities : NIAID
                Award ID: R01 AI074378-06 || AI
                Funded by: National Institute of Allergy and Infectious Diseases Extramural Activities : NIAID
                Award ID: R01 AI074378-05 || AI
                Funded by: National Institute of Allergy and Infectious Diseases Extramural Activities : NIAID
                Award ID: R01 AI074378-04 || AI
                Funded by: National Institute of Allergy and Infectious Diseases Extramural Activities : NIAID
                Award ID: P01 AI096187-01 || AI
                Funded by: National Institute of Allergy and Infectious Diseases Extramural Activities : NIAID
                Award ID: P01 AI061093-08 || AI
                Categories
                Article

                Immunology
                Immunology

                Comments

                Comment on this article

                scite_
                0
                0
                0
                0
                Smart Citations
                0
                0
                0
                0
                Citing PublicationsSupportingMentioningContrasting
                View Citations

                See how this article has been cited at scite.ai

                scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.

                Similar content176

                Cited by273

                Most referenced authors1,712