This is a pretty exciting moment. The Dendritic Cell actually has found
the right Helper T Cell out of billions! But this is still not enough to activate
the Helper T Cell. A second signal is necessary, communicated by another
set of receptors on both cells.
This second signal is like a gentle kiss from the Dendritic Cell, if you
want. It's another confirmation signal that clearly communicates again:
"This is real, you are really properly activated!"

From Immune a book by Philipp Dettmer
Creator of kurzgesagt in a nutshell
When I read this I immediately thought of cells at work! and this came to mind. And before I knew it I started drawing. Tbh i wish dendritic cell was shown more often in the anime I like him.
#anime #manga #cells #cellsatwork #hatarakusaibou