Intrinsically determined turnover underlies broad heterogeneity in plasma-cell lifespan

MJ Robinson, Z Ding, MR Dowling, DL Hill… - Immunity, 2023 - cell.com
Antibodies produced by antibody-secreting plasma cells (ASCs) underlie multiple forms of
long-lasting immunity. Here we examined the mechanisms regulating ASC turnover and …

IL-21R signal reprogramming cooperates with CD40 and BCR signals to select and differentiate germinal center B cells

W Luo, L Conter, RA Elsner, S Smita, F Weisel… - Science …, 2023 - science.org
Both B cell receptor (BCR) and CD40 signaling are rewired in germinal center (GC) B cells
(GCBCs) to synergistically induce c-MYC and phosphorylated S6 ribosomal protein (p-S6) …

Molecular mechanisms insulating proliferation from genotoxic stress in B lymphocytes

NE Wright, M Mandal, MR Clark - Trends in Immunology, 2023 - cell.com
In mammals, B cells strictly segregate proliferation from somatic mutation as they develop
within the bone marrow and then mature through germinal centers (GCs) in the periphery …

Interleukin-21, acting beyond the immunological synapse, independently controls T follicular helper and germinal center B cells

I Quast, AR Dvorscek, C Pattaroni, TM Steiner… - Immunity, 2022 - cell.com
Germinal centers (GCs), transient structures within B cell follicles and central to affinity
maturation, require the coordinated behavior of T and B cells. IL-21, a pleiotropic T cell …

Heparan sulfate regulates IL-21 bioavailability and signal strength that control germinal center B cell selection and differentiation

Z Chen, Y Cui, Y Yao, B Liu, J Yunis, X Gao… - Science …, 2023 - science.org
In antibody responses, mutated germinal center B (BGC) cells are positively selected for
reentry or differentiation. As the products from GCs, memory B cells and antibody-secreting …

IL-21 shapes germinal center polarization via light zone B cell selection and cyclin D3 upregulation

L Petersone, CJ Wang, NM Edner, A Fabri… - Journal of Experimental …, 2023 - rupress.org
Germinal center (GC) dysregulation has been widely reported in the context of
autoimmunity. Here, we show that interleukin 21 (IL-21), the archetypal follicular helper T …

T-cell help in the germinal center: homing in on the role of IL-21

L Petersone, LSK Walker - International Immunology, 2024 - academic.oup.com
Abstract Interleukin 21 (IL-21) is a pleiotropic cytokine that is overproduced in multiple
autoimmune settings. Provision of IL-21 from follicular helper T cells is an important …

Maf expression in B cells restricts reactive plasmablast and germinal center B cell expansion

S Hillion, A Miranda, C Le Dantec, M Boudigou… - Nature …, 2024 - nature.com
Precise regulation of B cell differentiation is essential for an effective adaptive immune
response. Here, we show that B cell development in mice with B cell-specific Maf deletion is …

IL‐21 has a critical role in establishing germinal centers by amplifying early B cell proliferation

AR Dvorscek, CI McKenzie, MJ Robinson, Z Ding… - EMBO …, 2022 - embopress.org
The proliferation and differentiation of antigen‐specific B cells, including the generation of
germinal centers (GC), are prerequisites for long‐lasting, antibody‐mediated immune …

Aberrant zonal recycling of germinal center B cells impairs appropriate selection in lupus

GM Sanchez, ES Hirsch, A VanValkenburg, DP Mayer… - Cell Reports, 2024 - cell.com
Autoimmune diseases such as lupus are characterized by polyclonal B cell activation,
leading to the production of autoantibodies. The mechanism leading to B cell dysregulation …