Most cells evolve slowly, accumulating incremental changes that better suit their environments. Immune cells, because they must adapt rapidly to counter new threats, evolve much more quickly. Part of that, UCLA physicists now report, rests on their ability to forcibly pull antigens off other cells’ surfaces and “study” them.
Click here for original story, Biological bouncers: How immune cells yank antigens from surfaces to learn and evolve
Source: Phys.org