Regulatory B Cells: Origin, Phenotype, and Function

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Regulatory B Cells: Origin, Phenotype, and Function Elizabeth C. Rosser, Claudia Mauri  Immunity  Volume 42, Issue 4, Pages 607-612 (April 2015) DOI: 10.1016/j.immuni.2015.04.005 Copyright © 2015 Elsevier Inc. Terms and Conditions

Figure 1 Functional Properties of Breg Cells Through the production of IL-10, TGF-β, and IL-35, Breg cells can suppress the differentiation of pro-inflammatory lymphocytes, such as tumor necrosis factor α (TNF-α)-producing monocytes, IL-12-producing dendritic cells, Th17 cells, Th1 cells, and cytotoxic CD8+ T cells. Breg cells can also induce the differentiation of immunosuppressive T cells, Foxp3+ T cells, and T regulatory 1 (Tr1) cells. Breg cells also support the maintenance of iNKT cells. Immunity 2015 42, 607-612DOI: (10.1016/j.immuni.2015.04.005) Copyright © 2015 Elsevier Inc. Terms and Conditions

Figure 2 Proposed Developmental Pathways for Breg Cell Differentiation After CD40 activation, TLR activation, or activation with cytokines, immature B cells can differentiate into B10 cells, IL-10-producing T2-MZP cells, and mature B cells. It is possible that while B10 and T2-MZP cells are differentiating into plasmablasts and/or plasma cells, they retain their ability to produce IL-10 and/or IL-35. B10 and T2-MZP cells can also differentiate into mature B cells. IL-10- and/or IL-35-producing plasmablasts and/or plasma cells can also develop directly from mature B cells. All Breg cell types can terminally differentiate into antibody-producing plasma cells. Immunity 2015 42, 607-612DOI: (10.1016/j.immuni.2015.04.005) Copyright © 2015 Elsevier Inc. Terms and Conditions