NewslettersImmune Regulation NewsIL-21R Signal Reprogramming Cooperates with CD40 and BCR Signals to Select and Differentiate Germinal Center B CellsBy Laurisa Dohm - February 17, 20230488Scientists revealed a second positive selection pathway in germinal center B cells (GCBCs), documented rewired IL-21 receptor (IL-21R signaling) in GCBCs, and linked specific TFH- and Ag-derived signals to GCBC differentiation.[Science Immunology]Abstract