All quiet on the … digestion front?!
This is Sandra Tsing Loh with the Loh Down on Science.
Your immune system usually “trains” soldier cells at lymph nodes — before shipping them out. But what if the battle is too far away?
Enter John Gridley and Arash Grakoui from Emory University.
They studied mice with a Hepatitis C-like virus that attacks the liver. This virus was able to sneak past the usual immune headquarters. So, the liver flipped the script and built its own temporary “pop-up” battle stations.
These emergency hubs — called iHALT — trained antibody squads ON-SITE to block infection.
Future treatments could boost these local battle stations to clear stubborn infections!
Talk about a “liver-die” situation! Or… a liver-let-live? Liverwurst?
Reference: Gridley, J., Pak, D., Kumari, A., Shupak, J., Holland, B., Shi, Y., … & Grakoui, A. (2025). iHALT unlocks liver functionality as a surrogate secondary lymphoid organ. Nature, 1-12.