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. 2023 Jan 27;220(4):e20222173. doi: 10.1084/jem.20222173

Video 1.

TBMs are stationary cells that interact with GC B cells through dynamic protrusions. CX3CR1GFP were primed with OVA and after 14 d received tdTomato+ B1-8hi B cells followed by injection with NP-OVA to the footpad. After an additional 7 d, the mice were subjected to intervital TPLSM. Green, macrophages; red, B cells.