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  1. Book: Interleukin-10 in health and disease

    Fillatreau, Simon

    (Current topics in microbiology and immunology ; 380)

    2014  

    Author's details Simon Fillatreau ... ed
    Series title Current topics in microbiology and immunology ; 380
    Collection
    Keywords Il-10 polymorphisms ; TLR triggering ; IL-10 expression ; Counter-regulation of immunity ; Anti-inflammatory cytokine ; Viral IL-10 homologs ; Interleukin-10 ; Maintenance of immune homeostasis ; Intestinal immunity ; Tr1 cells ; Innate microbial recognition ; Interleukin 10
    Language English
    Size VIII, 238 S.
    Publisher Springer
    Publishing place Berlin u.a.
    Publishing country Germany
    Document type Book
    HBZ-ID HT018351782
    ISBN 978-3-662-43491-8 ; 3-662-43491-1 ; 9783662434925 ; 366243492X
    Database Catalogue ZB MED Medicine, Health

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  2. Article ; Online: Antibodies against type I IFN: The bad guys self-restrain in systemic lupus erythematosus.

    Fillatreau, Simon

    Cell reports. Medicine

    2023  Volume 4, Issue 1, Page(s) 100903

    Abstract: B cells and autoantibodies have well-described pathological roles in systemic lupus erythematosus (SLE). Bradford et al. ...

    Abstract B cells and autoantibodies have well-described pathological roles in systemic lupus erythematosus (SLE). Bradford et al.
    MeSH term(s) Male ; Humans ; Interferon Type I ; Autoantibodies ; B-Lymphocytes ; Lupus Erythematosus, Systemic
    Chemical Substances Interferon Type I ; Autoantibodies
    Language English
    Publishing date 2023-01-13
    Publishing country United States
    Document type Journal Article ; Comment
    ISSN 2666-3791
    ISSN (online) 2666-3791
    DOI 10.1016/j.xcrm.2022.100903
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Regulatory functions of B cells and regulatory plasma cells.

    Fillatreau, Simon

    Biomedical journal

    2019  Volume 42, Issue 4, Page(s) 233–242

    Abstract: B cells critically contribute to health through the production of antibodies that provide a vital line of defence against infectious agents. In addition, B cells are known to play an integrative role in immunity, acting as crucial antigen-presenting ... ...

    Abstract B cells critically contribute to health through the production of antibodies that provide a vital line of defence against infectious agents. In addition, B cells are known to play an integrative role in immunity, acting as crucial antigen-presenting cells for T cells, and being an important source of cytokines that can target multiple cell types including stromal cells, innate cells, and adaptive lymphocytes. This review focuses on the role of B cells as negative regulators of immunity through the production of interleukin-10 (IL-10) in autoimmune, infectious, and malignant diseases. It discusses the phenotypes of the B cell subsets most competent to produce IL-10 in vitro and to exert suppressive functions in vivo upon adoptive transfer in recipient mice, the signals and transcription factors regulating IL-10 expression in B cells, and the recent identification of plasmocytes, including short-lived plasmablasts and long-lived plasma cells, as an important source of IL-10 in secondary lymphoid organs and inflamed tissues in vivo during mouse and human diseases. With our increasing knowledge of this non-canonical B cell function a coherent framework starts emerging that will help monitoring and targeting this B cell function in health and disease.
    MeSH term(s) Animals ; B-Lymphocytes/immunology ; Cell Differentiation/immunology ; Cytokines/metabolism ; Humans ; Immunity/immunology ; Plasma Cells/cytology ; T-Lymphocytes/immunology
    Chemical Substances Cytokines
    Language English
    Publishing date 2019-09-19
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2698541-X
    ISSN 2320-2890 ; 2319-4170
    ISSN (online) 2320-2890
    ISSN 2319-4170
    DOI 10.1016/j.bj.2019.05.008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Natural regulatory plasma cells.

    Fillatreau, Simon

    Current opinion in immunology

    2018  Volume 55, Page(s) 62–66

    Abstract: B cells can generate several types of antibody-secreting cells, including plasmablasts that divide and are short lived, as well as plasma cells that do not proliferate and can persist for extended time periods. Here, we discuss the identification of a ... ...

    Abstract B cells can generate several types of antibody-secreting cells, including plasmablasts that divide and are short lived, as well as plasma cells that do not proliferate and can persist for extended time periods. Here, we discuss the identification of a novel subset of non-dividing plasma cells specialized in the production of interleukin(IL)-10. These cells develop at steady state, including in germ-free mice, via a mechanism dependent on the B cell receptor for antigen and possibly involving the recognition of damaged cells. They are characterized by the expression of the inhibitory receptor LAG-3, and also express CD200, PD-L1, as well as PD-L2. Their specialized epigenome allows them to produce IL-10 within hours after stimulation, which altogether qualify these cells as natural regulatory plasma cells.
    MeSH term(s) Animals ; Humans ; Interleukin-10/immunology ; Plasma Cells/immunology
    Chemical Substances Interleukin-10 (130068-27-8)
    Language English
    Publishing date 2018-10-04
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 1035767-1
    ISSN 1879-0372 ; 0952-7915
    ISSN (online) 1879-0372
    ISSN 0952-7915
    DOI 10.1016/j.coi.2018.09.012
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Regulatory B cells gain muscles with a leucine-rich diet.

    Manfroi, Benoît / Fillatreau, Simon

    Immunity

    2022  Volume 55, Issue 6, Page(s) 970–972

    Abstract: Regulatory B cells infiltrate the microenvironment of solid tumors. However, their identification and characterization remain incomplete. In this issue of Immunity, Wang and colleagues characterize a new subset of leucine-induced regulatory B cells ... ...

    Abstract Regulatory B cells infiltrate the microenvironment of solid tumors. However, their identification and characterization remain incomplete. In this issue of Immunity, Wang and colleagues characterize a new subset of leucine-induced regulatory B cells involved in colorectal cancer (CRC) immunoevasion in mice and humans.
    MeSH term(s) Animals ; B-Lymphocytes, Regulatory ; Colorectal Neoplasms ; Diet ; Leucine ; Mice ; Muscles ; Neoplasms ; Tumor Microenvironment
    Chemical Substances Leucine (GMW67QNF9C)
    Language English
    Publishing date 2022-06-15
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 1217235-2
    ISSN 1097-4180 ; 1074-7613
    ISSN (online) 1097-4180
    ISSN 1074-7613
    DOI 10.1016/j.immuni.2022.05.011
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: B cells and their cytokine activities implications in human diseases.

    Fillatreau, Simon

    Clinical immunology (Orlando, Fla.)

    2017  Volume 186, Page(s) 26–31

    Abstract: B cells are the only cell type that can give rise to antibody-producing cells, and the only cell type whose selective depletion can, today, lead to an improvement of a wide range of immune-mediated inflammatory diseases, including disorders not primarily ...

    Abstract B cells are the only cell type that can give rise to antibody-producing cells, and the only cell type whose selective depletion can, today, lead to an improvement of a wide range of immune-mediated inflammatory diseases, including disorders not primarily driven by autoantibodies. Here, I discuss this paradoxical observation, and propose that the capacity of B cells to act as cytokine-producing cells explains how they can control monocyte activity and subsequently disease pathogenesis. Together with current data on the effect of anti-CD20 B cell-depleting reagents in the clinic, this novel knowledge on B cell heterogeneity opens the way for novel safer and more efficient strategies to target B cells. The forthcoming identification of disease-relevant B cell subsets is awaited to permit their monitoring and specific targeting in a personalized medicine approach.
    MeSH term(s) Animals ; Arthritis, Rheumatoid/immunology ; B-Lymphocytes/immunology ; Cytokines/immunology ; Humans ; Multiple Sclerosis/immunology
    Chemical Substances Cytokines
    Language English
    Publishing date 2017-07-21
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 1459903-x
    ISSN 1521-7035 ; 1521-6616
    ISSN (online) 1521-7035
    ISSN 1521-6616
    DOI 10.1016/j.clim.2017.07.020
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Regulatory roles of B cells in infectious diseases.

    Fillatreau, Simon

    Clinical and experimental rheumatology

    2016  Volume 34, Issue 4 Suppl 98, Page(s) 1–5

    Abstract: B lymphocytes provide essential mechanisms of protection against infectious diseases. The secretion of specific antibodies by long-lived plasma cells is thought to account for the improved resistance afforded by most successful vaccines against pathogens. ...

    Abstract B lymphocytes provide essential mechanisms of protection against infectious diseases. The secretion of specific antibodies by long-lived plasma cells is thought to account for the improved resistance afforded by most successful vaccines against pathogens. Accordingly, a goal in vaccine development is to induce potent B cell responses in order to drive the efficient formation of long-lived antibody-secreting cells. However, the roles of activated B cells are complex in infectious diseases. It was recently observed that activated B cells could also negatively regulate host defence mechanisms, both during primary infection and, after vaccination, upon secondary challenge, via mechanisms involving their production of the anti-inflammatory cytokines interleukin (IL)-10 and IL-35. Remarkably, the B cells expressing IL-10 and IL-35 in vivo were distinct subsets of IgMhiCD19+CD138hi antibody-secreting cells. A better understanding of the diverse roles of these distinct antibody-secreting cell subsets in immunity and immunological memory, as well as of the signals controlling their generation, might help the rational development of better prophylactic and therapeutic vaccines.
    MeSH term(s) Animals ; Antibodies/immunology ; Antibodies/metabolism ; B-Lymphocytes, Regulatory/immunology ; B-Lymphocytes, Regulatory/metabolism ; Communicable Diseases/immunology ; Communicable Diseases/metabolism ; Communicable Diseases/therapy ; Cytokines/immunology ; Cytokines/metabolism ; Host-Pathogen Interactions ; Humans ; Immunity, Humoral ; Immunologic Memory ; Immunotherapy/methods ; Lymphocyte Activation ; Phenotype ; Vaccination ; Vaccines/immunology ; Vaccines/therapeutic use
    Chemical Substances Antibodies ; Cytokines ; Vaccines
    Language English
    Publishing date 2016-07
    Publishing country Italy
    Document type Journal Article ; Review
    ZDB-ID 605886-3
    ISSN 1593-098X ; 0392-856X
    ISSN (online) 1593-098X
    ISSN 0392-856X
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Pathogenic functions of B cells in autoimmune diseases: IFN-γ production joins the criminal gang.

    Fillatreau, Simon

    European journal of immunology

    2015  Volume 45, Issue 4, Page(s) 966–970

    Abstract: B-cell depletion therapy has emerged as a powerful strategy to intercept the progression of T-cell-mediated autoimmune diseases such as rheumatoid arthritis, type 1 diabetes, or relapsing remitting multiple sclerosis. However, its mode of action remains ... ...

    Abstract B-cell depletion therapy has emerged as a powerful strategy to intercept the progression of T-cell-mediated autoimmune diseases such as rheumatoid arthritis, type 1 diabetes, or relapsing remitting multiple sclerosis. However, its mode of action remains incompletely defined, reflecting our incomplete understanding of the pathogenic functions of B cells in such pathologies. B cells can contribute to immune responses through the production of antibodies, presentation of antigen to T cells, and production of cytokines. In this issue of the European Journal of Immunology [Eur. J. Immunol. 2015. 45: 988-998], Olalekan et al. demonstrate that IFN-γ production by B cells is essential for the development of arthritis in mice. Lack of IFN-γ expression in B cells results in reduced autoimmune T-cell responses and autoantibody levels, impacting the arthritogenic reaction akin to that in B-cell depletion therapy. Together with other reports, the article by Olalekan et al. emphasizes the importance of cytokine-producing B cells in the pathogenesis of autoimmune diseases. In this commentary, I discuss how these findings shed new light on the roles of B cells as drivers of autoimmune pathogenesis, and how they more generally contribute to our understanding of the role of B cells in immunity.
    MeSH term(s) Animals ; Arthritis, Rheumatoid/immunology ; Arthritis, Rheumatoid/therapy ; Autoimmune Diseases/immunology ; Autoimmune Diseases/therapy ; Autoimmunity/immunology ; B-Lymphocytes/immunology ; Cytokines/biosynthesis ; Cytokines/immunology ; Diabetes Mellitus, Type 1/immunology ; Diabetes Mellitus, Type 1/therapy ; Humans ; Interferon-gamma/biosynthesis ; Interferon-gamma/genetics ; Interferon-gamma/immunology ; Lymphocyte Depletion ; Mice ; Multiple Sclerosis, Relapsing-Remitting/immunology ; Multiple Sclerosis, Relapsing-Remitting/therapy ; T-Lymphocytes/immunology
    Chemical Substances Cytokines ; Interferon-gamma (82115-62-6)
    Language English
    Publishing date 2015-04
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 120108-6
    ISSN 1521-4141 ; 0014-2980
    ISSN (online) 1521-4141
    ISSN 0014-2980
    DOI 10.1002/eji.201545544
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Regulatory plasma cells.

    Fillatreau, Simon

    Current opinion in pharmacology

    2015  Volume 23, Page(s) 1–5

    Abstract: B cells can regulate immunity negatively or positively. Identifying the B cell subsets mediating these antagonistic activities, and the molecular mechanisms governing their differentiation, might enable the development of novel approaches to target B ... ...

    Abstract B cells can regulate immunity negatively or positively. Identifying the B cell subsets mediating these antagonistic activities, and the molecular mechanisms governing their differentiation, might enable the development of novel approaches to target B cells therapeutically. The suppressive functions of B cells are primarily mediated through their production of interleukin (IL)-10 and IL-35. Recent studies have shown that distinct sets of IgM(+)CD19(+)CD138(hi) plasma cells were the major B cell subsets producing these cytokines in a regulatory manner in vivo during autoimmune and infectious diseases. This review summarizes current knowledge on these 'regulatory plasma cells', and discusses the emerging data showing that the mechanisms involved in their generation partly overlap with those controlling the differentiation of 'effector regulatory T cells'.
    MeSH term(s) Animals ; Autoimmune Diseases/immunology ; B-Lymphocytes/physiology ; Humans ; Interferon Regulatory Factors/physiology ; Interleukin-10/physiology ; Interleukins/physiology ; Plasma Cells/physiology ; Positive Regulatory Domain I-Binding Factor 1 ; Repressor Proteins/physiology ; T-Lymphocytes, Regulatory/physiology
    Chemical Substances IL10 protein, human ; Interferon Regulatory Factors ; Interleukins ; Repressor Proteins ; interferon regulatory factor-4 ; interleukin-35, human ; Interleukin-10 (130068-27-8) ; PRDM1 protein, human (138415-26-6) ; Positive Regulatory Domain I-Binding Factor 1 (EC 2.1.1.-)
    Language English
    Publishing date 2015-08
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2037057-X
    ISSN 1471-4973 ; 1471-4892
    ISSN (online) 1471-4973
    ISSN 1471-4892
    DOI 10.1016/j.coph.2015.04.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Monocyte-derived dendritic cells identified as booster of T follicular helper cell differentiation.

    Fillatreau, Simon

    EMBO molecular medicine

    2014  Volume 6, Issue 5, Page(s) 574–576

    Abstract: Adjuvants play an essential role in the induction of acquired immunity upon vaccination with protein antigen. In this issue of EMBO Molecular Medicine, a classical type of adjuvant made of DNA oligonucleotide containing CpG motifs, which has already been ...

    Abstract Adjuvants play an essential role in the induction of acquired immunity upon vaccination with protein antigen. In this issue of EMBO Molecular Medicine, a classical type of adjuvant made of DNA oligonucleotide containing CpG motifs, which has already been used in humans, is shown to boost humoral immunity primarily by acting on monocyte-derived dendritic cells. This study provides novel insight on the mode of action of adjuvant targeting Toll-like receptors.
    MeSH term(s) Adjuvants, Immunologic/pharmacology ; Animals ; Cell Differentiation ; Dendritic Cells/immunology ; Oligodeoxyribonucleotides/pharmacology ; T-Lymphocytes, Helper-Inducer/immunology ; T-Lymphocytes, Helper-Inducer/physiology
    Chemical Substances Adjuvants, Immunologic ; CPG-oligonucleotide ; Oligodeoxyribonucleotides
    Language English
    Publishing date 2014-05-05
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Comment
    ZDB-ID 2467145-9
    ISSN 1757-4684 ; 1757-4676
    ISSN (online) 1757-4684
    ISSN 1757-4676
    DOI 10.1002/emmm.201404015
    Database MEDical Literature Analysis and Retrieval System OnLINE

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