Fig.1. Graphical Abstract (IMAGE) Osaka University Caption Authors identified the plasma cell-prone LZ GC B cells whose generation relies on the amount of D40 signal. Higher expression of ICAM-1 and SLAM in those cells facilitates more stable contacts with Tfh cells, suggesting that strength of Tfh-GC B cell interaction critically regulates formation of plasma cell precursors. Credit Osaka University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.