Introduction: Upon infection, T cell-driven B cell responses in GC reactions induce memory B cells and antibody-secreting cells that secrete protective antibodies. How formation of specifically long-lived plasma cells is regulated via the interplay between specific B and CD4+ T cells is not well understood. Generally, antibody levels decline over time after clearance of the primary infection.
View Article and Find Full Text PDFUnderstanding antigen-specific T-cell responses is crucial for advancing immunotherapies and vaccine development. This study proposes a novel approach combining two complementary assays: the 5-ethynyl-2'-deoxyuridine (EdU) incorporation assay (tracking proliferation over 0-48 h) and the VPD450 dye dilution assay (tracking proliferation over 4-6 days). Integrating these techniques provides additional insights into T-cell proliferation kinetics.
View Article and Find Full Text PDFThe development of T follicular helper (Tfh) cells is an ongoing process resulting in the formation of various Tfh subsets. Despite advancements, the precise impact of T cell receptor (TCR) stimulation on this process remains incompletely understood. This study explores how TCR-CD3 signaling strength influences naive CD4 T cell differentiation into Tfh-like cells and the concurrent expression of interleukin-21 (IL-21), interleukin-4 (IL-4), and interferon-gamma (IFN-γ).
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