Abstract
Over the past several decades, B cell antigen receptor (BCR)-induced signaling pathways have been described in extraordinary molecular detail, mainly from studies of B cell responses to antigens in vitro. BCR signaling has been shown to govern the initiation of transcriptional programs associated with B cell activation and fate decisions, as well as the BCR-dependent processing of antigen and presentation of antigen to T cells. However, although the potential of the BCR to orchestrate B cell behavior was known, there was no clear appreciation of the context in which B cells signal in secondary lymphoid organs in vivo or how that context influences signaling. In this Review, we describe the current view of the cellular consequences of BCR signaling and advances in the understanding of B cell signaling in context in vivo.
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References
Tangye, S. G. & Tarlinton, D. M. Memory B cells: effectors of long-lived immune responses. Eur. J. Immunol. 39, 2065–2075 (2009).
De Silva, N. S. & Klein, U. Dynamics of B cells in germinal centres. Nat. Rev. Immunol. 15, 137–148 (2015).
Shinnakasu, R. & Kurosaki, T. Regulation of memory B and plasma cell differentiation. Curr. Opin. Immunol. 45, 126–131 (2017).
Dal Porto, J. M. et al. B cell antigen receptor signaling 101. Mol. Immunol. 41, 599–613 (2004).
Goodnow, C. C., Vinuesa, C. G., Randall, K. L., Mackay, F. & Brink, R. Control systems and decision making for antibody production. Nat. Immunol. 11, 681–688 (2010).
Harwood, N. E. & Batista, F. D. Early events in B cell activation. Annu. Rev. Immunol. 28, 185–210 (2010).
Kurosaki, T., Shinohara, H. & Baba, Y. B cell signaling and fate decision. Annu. Rev. Immunol. 28, 21–55 (2010).
Chaturvedi, A., Martz, R., Dorward, D., Waisberg, M. & Pierce, S. K. Endocytosed BCRs sequentially regulate MAPK and Akt signaling pathways from intracellular compartments. Nat. Immunol. 12, 1119–1126 (2011).
Batista, F. D. & Harwood, N. E. The who, how and where of antigen presentation to B cells. Nat. Rev. Immunol. 9, 15–27 (2009).
Nutt, S. L., Hodgkin, P. D., Tarlinton, D. M. & Corcoran, L. M. The generation of antibody-secreting plasma cells. Nat. Rev. Immunol. 15, 160–171 (2015).
Kräutler, N. J. et al. Differentiation of germinal center B cells into plasma cells is initiated by high-affinity antigen and completed by Tfh cells. J. Exp. Med. 214, 1259–1267 (2017).
Tangye, S. G., Brink, R., Goodnow, C. C. & Phan, T. G. SnapShot: interactions between B cells and T cells. Cell 162, 926–926.e921 (2015).
Rawlings, D. J., Schwartz, M. A., Jackson, S. W. & Meyer-Bahlburg, A. Integration of B cell responses through Toll-like receptors and antigen receptors. Nat. Rev. Immunol. 12, 282–294 (2012).
Ruprecht, C. R. & Lanzavecchia, A. Toll-like receptor stimulation as a third signal required for activation of human naive B cells. Eur. J. Immunol. 36, 810–816 (2006).
Fleire, S. J. et al. B cell ligand discrimination through a spreading and contraction response. Science 312, 738–741 (2006). These authors (ref. 15) first described the spreading and contraction response of B cells to antigen presented on a membrane surface and related this response to B cell antigen discrimination.
Gonzalez, S. F. et al. Trafficking of B cell antigen in lymph nodes. Annu. Rev. Immunol. 29, 215–233 (2011).
Pierce, S. K. & Liu, W. The tipping points in the initiation of B cell signalling: how small changes make big differences. Nat. Rev. Immunol. 10, 767–777 (2010).
Bannard, O. & Cyster, J. G. Germinal centers: programmed for affinity maturation and antibody diversification. Curr. Opin. Immunol. 45, 21–30 (2017). This highly insightful, comprehensive short review (ref. 18) discusses affinity maturation mechanisms in germinal centers.
Victora, G. D. et al. Germinal center dynamics revealed by multiphoton microscopy with a photoactivatable fluorescent reporter. Cell 143, 592–605 (2010). This manuscript (ref. 19) reveals germinal center dynamics in vivo using multiphoton microscopy.
Shulman, Z. et al. T follicular helper cell dynamics in germinal centers. Science 341, 673–677 (2013).
Liu, D. et al. T-B-cell entanglement and ICOSL-driven feed-forward regulation of germinal centre reaction. Nature 517, 214–218 (2015).
Pereira, J. P., Kelly, L. M., Xu, Y. & Cyster, J. G. EBI2 mediates B cell segregation between the outer and centre follicle. Nature 460, 1122–1126 (2009).
Coffey, F., Alabyev, B. & Manser, T. Initial clonal expansion of germinal center B cells takes place at the perimeter of follicles. Immunity 30, 599–609 (2009).
Gitlin, A. D., Shulman, Z. & Nussenzweig, M. C. Clonal selection in the germinal centre by regulated proliferation and hypermutation. Nature 509, 637–640 (2014).
Caro-Maldonado, A. et al. Metabolic reprogramming is required for antibody production that is suppressed in anergic but exaggerated in chronically BAFF-exposed B cells. J. Immunol. 192, 3626–3636 (2014).
Doughty, C. A. et al. Antigen receptor-mediated changes in glucose metabolism in B lymphocytes: role of phosphatidylinositol 3-kinase signaling in the glycolytic control of growth. Blood 107, 4458–4465 (2006).
Jellusova, J. et al. Gsk3 is a metabolic checkpoint regulator in B cells. Nat. Immunol. 18, 303–312 (2017).
Boothby, M. & Rickert, R. C. Metabolic regulation of the immune humoral response. Immunity 46, 743–755 (2017).
Tsui, C. et al. Protein kinase C-β dictates B cell fate by regulating mitochondrial remodeling, metabolic reprogramming, and heme biosynthesis. Immunity 48, 1144–1159.e1145 (2018).
Benhamron, S., Pattanayak, S. P., Berger, M. & Tirosh, B. mTOR activation promotes plasma cell differentiation and bypasses XBP-1 for immunoglobulin secretion. Mol. Cell. Biol. 35, 153–166 (2015).
Kometani, K. et al. Repression of the transcription factor Bach2 contributes to predisposition of IgG1 memory B cells toward plasma cell differentiation. Immunity 39, 136–147 (2013).
Akkaya, M. et al. Second signals rescue B cells from activation-induced mitochondrial dysfunction and death. Nat. Immunol. 19, 871–884 (2018). Here, the authors (ref. 32) describe the activation-induced cell death phenomenon in B cells with links to mitochondrial fitness and metabolic remodeling. B cells stimulated via antigen rapidly increase energy production, but this initial activation must be sustained by the receipt of secondary signals through either TLRs or cognate B cell–T cell interactions. If a BCR-activated B cell receives neither of these signals, then the initial activation fades and the B cell dies due to dysregulated calcium homeostasis and mitochondrial dysfunction.
Turner, J. S., Marthi, M., Benet, Z. L. & Grigorova, I. Transiently antigen-primed B cells return to naive-like state in absence of T-cell help. Nat. Commun. 8, 15072 (2017).
Akkaya, M. et al. Toll-like receptor 9 antagonizes antibody affinity maturation. Nat. Immunol. 19, 255–266 (2018). This manuscript (ref. 34) describes how receipt of additional signals through TLR9 influences the fate of antigen-induced B cells. In summary, TLR9 signals block multiple elements of the internalization and processing of BCR-bound antigens, which leads to weaker B cell–T cell interactions but on the other hand drives rapid proliferation and extrafollicular differentiation.
Pisitkun, P. et al. Autoreactive B cell responses to RNA-related antigens due to TLR7 gene duplication. Science 312, 1669–1672 (2006).
Leadbetter, E. A. et al. Chromatin-IgG complexes activate B cells by dual engagement of IgM and Toll-like receptors. Nature 416, 603–607 (2002).
Tipton, C. M., Hom, J. R., Fucile, C. F., Rosenberg, A. F. & Sanz, I. Understanding B-cell activation and autoantibody repertoire selection in systemic lupus erythematosus: A B-cell immunomics approach. Immunol. Rev. 284, 120–131 (2018).
DeFranco, A. L., Rookhuizen, D. C. & Hou, B. Contribution of Toll-like receptor signaling to germinal center antibody responses. Immunol. Rev. 247, 64–72 (2012).
Schwickert, T. A. et al. A dynamic T cell-limited checkpoint regulates affinity-dependent B cell entry into the germinal center. J. Exp. Med. 208, 1243–1252 (2011).
Liu, W., Meckel, T., Tolar, P., Sohn, H. W. & Pierce, S. K. Antigen affinity discrimination is an intrinsic function of the B cell receptor. J. Exp. Med. 207, 1095–1111 (2010).
Shih, T. A., Meffre, E., Roederer, M. & Nussenzweig, M. C. Role of BCR affinity in T cell-dependent antibody responses in vivo. Nat. Immunol. 3, 570–575 (2002).
Benson, M. J., Erickson, L. D., Gleeson, M. W. & Noelle, R. J. Affinity of antigen encounter and other early B-cell signals determine B-cell fate. Curr. Opin. Immunol. 19, 275–280 (2007).
Tolar, P. Cytoskeletal control of B cell responses to antigens. Nat. Rev. Immunol. 17, 621–634 (2017).
Natkanski, E. et al. B cells use mechanical energy to discriminate antigen affinities. Science 340, 1587–1590 (2013). These authors (ref. 44) provided the first evidence that B cells utilize mechanical energy to discriminate antigen affinities through myosin IIa activity.
Liu, B., Chen, W. & Zhu, C. Molecular force spectroscopy on cells. Annu. Rev. Phys. Chem. 66, 427–451 (2015).
Wan, Z. et al. The activation of IgM- or isotype-switched IgG- and IgE-BCR exhibits distinct mechanical force sensitivity and threshold. eLife 4, e06925 (2015).
Liu, W. et al. The scaffolding protein synapse-associated protein 97 is required for enhanced signaling through isotype-switched IgG memory B cell receptors. Sci. Signal. 5, ra54 (2012).
Engels, N. et al. The immunoglobulin tail tyrosine motif upgrades memory-type BCRs by incorporating a Grb2-Btk signalling module. Nat. Commun. 5, 5456 (2014).
Spillane, K. M. & Tolar, P. B cell antigen extraction is regulated by physical properties of antigen-presenting cells. J. Cell Biol. 216, 217–230 (2017).
Bufi, N. et al. Human primary immune cells exhibit distinct mechanical properties that are modified by inflammation. Biophys. J. 108, 2181–2190 (2015).
Muñoz-Fernández, R. et al. Contractile activity of human follicular dendritic cells. Immunol. Cell Biol. 92, 851–859 (2014).
Sacquin, A., Gador, M. & Fazilleau, N. The strength of BCR signaling shapes terminal development of follicular helper T cells in mice. Eur. J. Immunol. 47, 1295–1304 (2017).
Ise, W. et al. T follicular helper cell-germinal center B cell interaction strength regulates entry into plasma cell or recycling germinal center cell fate. Immunity 48, 702–715.e704 (2018).
Khalil, A. M., Cambier, J. C. & Shlomchik, M. J. B cell receptor signal transduction in the GC is short-circuited by high phosphatase activity. Science 336, 1178–1181 (2012).
Nowosad, C. R., Spillane, K. M. & Tolar, P. Germinal center B cells recognize antigen through a specialized immune synapse architecture. Nat. Immunol. 17, 870–877 (2016).
Luo, W., Weisel, F. & Shlomchik, M. J. B cell receptor and CD40 signaling are rewired for synergistic induction of the c-Myc transcription factor in germinal center B cells. Immunity 48, 313–326.e315 (2018).
Kwak, K. et al. Intrinsic properties of human germinal center B cells set antigen affinity thresholds. Sci. Immunol. 3, eaau6598 (2018).These authors (ref. 57) provided evidence for the structural basis of affinity discrimination in GC B cells. GC B cells form unconventional actin- and ezrin-rich pod-like structures after being activated by membrane-bound antigen, through which GC B cells test the affinity of their BCRs.
Mueller, J., Matloubian, M. & Zikherman, J. Cutting edge: an in vivo reporter reveals active B cell receptor signaling in the germinal center. J. Immunol. 194, 2993–2997 (2015).
Carrasco, Y. R. & Batista, F. D. B-cell activation by membrane-bound antigens is facilitated by the interaction of VLA-4 with VCAM-1. EMBO J. 25, 889–899 (2006).
Nemazee, D. Mechanisms of central tolerance for B cells. Nat. Rev. Immunol. 17, 281–294 (2017).
Schroeder, K. M., Agazio, A. & Torres, R. M. Immunological tolerance as a barrier to protective HIV humoral immunity. Curr. Opin. Immunol. 47, 26–34 (2017).
Cancro, M. P. & Kearney, J. F. B cell positive selection: road map to the primary repertoire? J. Immunol. 173, 15–19 (2004).
Chen, Y. et al. Microbial symbionts regulate the primary Ig repertoire. J. Exp. Med. 215, 1397–1415 (2018).
Mouquet, H., Warncke, M., Scheid, J. F., Seaman, M. S. & Nussenzweig, M. C. Enhanced HIV-1 neutralization by antibody heteroligation. Proc. Natl Acad. Sci. USA 109, 875–880 (2012).
Verkoczy, L. et al. Autoreactivity in an HIV-1 broadly reactive neutralizing antibody variable region heavy chain induces immunologic tolerance. Proc. Natl Acad. Sci. USA 107, 181–186 (2010).
Doyle-Cooper, C. et al. Immune tolerance negatively regulates B cells in knock-in mice expressing broadly neutralizing HIV antibody 4E10. J. Immunol. 191, 3186–3191 (2013).
Abbott, R. K. et al. Precursor frequency and affinity determine B cell competitive fitness in germinal centers, tested with germline-targeting HIV vaccine immunogens. Immunity 48, 133–146 e136 (2018).
Goodnow, C. C. et al. Altered immunoglobulin expression and functional silencing of self-reactive B lymphocytes in transgenic mice. Nature 334, 676–682 (1988).
Zikherman, J., Parameswaran, R. & Weiss, A. Endogenous antigen tunes the responsiveness of naive B cells but not T cells. Nature 489, 160–164 (2012).
Übelhart, R. et al. Responsiveness of B cells is regulated by the hinge region of IgD. Nat. Immunol. 16, 534–543 (2015).
Sabouri, Z. et al. IgD attenuates the IgM-induced anergy response in transitional and mature B cells. Nat. Commun. 7, 13381 (2016).
Noviski, M. et al. IgM and IgD B cell receptors differentially respond to endogenous antigens and control B cell fate. eLife 7, e35074 (2018).
Han, S., Zheng, B., Dal Porto, J. & Kelsoe, G. In situ studies of the primary immune response to (4-hydroxy-3-nitrophenyl)acetyl. IV. Affinity-dependent, antigen-driven B cell apoptosis in germinal centers as a mechanism for maintaining self-tolerance. J. Exp. Med. 182, 1635–1644 (1995).
Pulendran, B., Kannourakis, G., Nouri, S., Smith, K. G. & Nossal, G. J. Soluble antigen can cause enhanced apoptosis of germinal-centre B cells. Nature 375, 331–334 (1995).
Shokat, K. M. & Goodnow, C. C. Antigen-induced B-cell death and elimination during germinal-centre immune responses. Nature 375, 334–338 (1995).
Chan, T. D. et al. Elimination of germinal-center-derived self-reactive B cells is governed by the location and concentration of self-antigen. Immunity 37, 893–904 (2012).
Burnett, D. L. et al. Germinal center antibody mutation trajectories are determined by rapid self/foreign discrimination. Science 360, 223–226 (2018). These authors (ref. 77) describe how a small subset of autoreactive anergic B cells can mutate away from self reactivity to escape deletion and then participate in affinity maturation, a process called ‘clonal redemption’. Remarkably, the initial mutation away from self-reactivity positions these clones on a unique, rapid trajectory toward affinity maturation.
Sabouri, Z. et al. Redemption of autoantibodies on anergic B cells by variable-region glycosylation and mutation away from self-reactivity. Proc. Natl Acad. Sci. USA 111, E2567–E2575 (2014).
Acknowledgements
Supported by the Intramural Research Program of the National Institute of Allergy and Infectious Diseases of the US National Institutes of Health. The authors thank R. Kissinger (of that institution) for expert preparation of the illustrations presented here.
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Kwak, K., Akkaya, M. & Pierce, S.K. B cell signaling in context. Nat Immunol 20, 963–969 (2019). https://doi.org/10.1038/s41590-019-0427-9
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DOI: https://doi.org/10.1038/s41590-019-0427-9
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