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Snapshot: Interactions between B cells and T cells

Abstract

Interactions between B and T cells are critical for germinal center (GC) reactions and subsequent generation of long-lived memory and plasma cells (PCs). This requires Ag presentation to T cells and serial interactions between receptor/ligand pairs belonging to cytokine, chemokine, CD28/B7, and TNF/TNFR superfamilies that co-operate to induce requisite transcriptional programs in each cell type. In addition to BCR activation, B cell differentiation requires signals provided by T follicular helper (Tfh) cells at multiple spatially distinct checkpoints to ensure the quantity and quality of the antibody response. Tfh cells co-ordinately express molecules that allow them to co-localize with B cells in follicles and GCs of secondary lymphoid tissues and provide stage-specific helper signals to cognate B cells. This process is regulated intrinsically by specific transcription factors and extrinsically by T follicular regulatory (Tfr) cells. The importance of molecular interactions between B and T cells is evidenced by immunodeficient and autoimmune diseases that develop when these interactions are perturbed.

Type Journal
Authors Tangye, S.G.; Brink, R.; Goodnow, C.G.; Phan, T.G..
Publisher Name CELL
Published Date 2015-08-13 00:00:00
Published Volume 162
Status Published in-print