Video 9.

Live imaging of T cells, and T cells and B cells interacting in the adult zebrafish ALO. Ex vivo confocal micrograph extended depth-of-focus and maximum intensity projection time-lapse movies of the ALO of an adult Tg(lck:egfp)^cz2 transgenic zebrafish with T cells labeled in green, followed by a time-lapse movie of T-cell Tg(lck:mcherry)^ns107–B cell Tg(cd79b:egfp)^fcc89 interactions.

The axillary lymphoid organ is an external, experimentally accessible immune organ in the zebrafish

Daniel Castranova, Madeleine I. Kenton, Aurora Kraus, Christopher W. Dell, Jong S. Park, Marina Venero Galanternik, Gilseung Park, Daniel N. Lumbantobing, Louis Dye, Miranda Marvel, James Iben, Kiyohito Taimatsu, Van Pham, Reegan J. Willms, Lucas Blevens, Tanner F. Robertson, Yiran Hou, Anna Huttenlocher, Edan Foley, Lynne R. Parenti, J. Kimble Frazer, Kedar Narayan, and Brant M. Weinstein

DOI: 10.1084/jem.20241435