B cell signaling in context

K Kwak, M Akkaya, SK Pierce - Nature immunology, 2019 - nature.com
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 …

Germinal centers

GD Victora, MC Nussenzweig - Annual review of immunology, 2022 - annualreviews.org
Germinal centers (GCs) are microanatomical sites of B cell clonal expansion and antibody
affinity maturation. Therein, B cells undergo the Darwinian process of somatic diversification …

[PDF][PDF] Multifaceted effects of antigen valency on B cell response composition and differentiation in vivo

Y Kato, RK Abbott, BL Freeman, S Haupt, B Groschel… - Immunity, 2020 - cell.com
How antigen valency affects B cells in vivo during immune responses is not well understood.
Here, using HIV immunogens with defined valencies ranging from 1 to 60, we investigated …

NR4A nuclear receptors restrain B cell responses to antigen when second signals are absent or limiting

C Tan, R Hiwa, JL Mueller, V Vykunta, K Hibiya… - Nature …, 2020 - nature.com
Antigen stimulation (signal 1) triggers B cell proliferation and primes B cells to recruit,
engage and respond to T cell help (signal 2). Failure to receive signal 2 within a defined …

New insights into B cells as antigen presenting cells

D Ghosh, W Jiang, D Mukhopadhyay… - Current opinion in …, 2021 - Elsevier
Highlights•The MHCII antigen presentation pathway has unique features in B cells.•The
MHCII antigen presentation pathway is regulated differently in different B cell subsets.•B cell …

[HTML][HTML] Positive selection in the light zone of germinal centers

R Nakagawa, DP Calado - Frontiers in Immunology, 2021 - frontiersin.org
Germinal centers (GCs) are essential sites for the production of high-affinity antibody
secreting plasma cells (PCs) and memory-B cells (MBCs), which form the framework of …

Germinal center entry not selection of B cells is controlled by peptide-MHCII complex density

CH Yeh, T Nojima, M Kuraoka, G Kelsoe - Nature communications, 2018 - nature.com
B cells expressing high affinity antigen receptors are advantaged in germinal centers (GC),
perhaps by increased acquisition of antigen for presentation to follicular helper T cells and …

IL-2 imprints human naive B cell fate towards plasma cell through ERK/ELK1-mediated BACH2 repression

N Hipp, H Symington, C Pastoret, G Caron… - Nature …, 2017 - nature.com
Plasma cell differentiation is a tightly regulated process that requires appropriate T cell helps
to reach the induction threshold. To further understand mechanisms by which T cell inputs …

Germinal center B cells that acquire nuclear proteins are specifically suppressed by follicular regulatory T cells

F Ke, ZL Benet, MP Maz, J Liu, AL Dent… - Elife, 2023 - elifesciences.org
Follicular regulatory T cells (Tfr) restrict development of autoantibodies and autoimmunity
while supporting high-affinity foreign antigen-specific humoral response. However, whether …

[PDF][PDF] The amount of BCL6 in B cells shortly after antigen engagement determines their representation in subsequent germinal centers

MJ Robinson, Z Ding, C Pitt, EJ Brodie, I Quast… - Cell Reports, 2020 - cell.com
It is unknown whether the incremental increases in BCL6 amounts in antigen-activated B
cells influence the unfolding differentiation before germinal center (GC) formation. By …