Never understood this. If something foreign enters you your white blood cells go after it like a dog in heat, Would this not mean that our cells are smart enough to discern bad from good?

Don_Dickle@lemmy.world · 2 days ago

Never understood this. If something foreign enters you your white blood cells go after it like a dog in heat, Would this not mean that our cells are smart enough to discern bad from good?

Klox@lemmy.world · 2 days ago

I didn’t appreciate how much of chemistry and biology is just geometry until reading about AlphaFold. AFAIK, antigens bind because they literally “fit”. And if they don’t fit, it just slips off until the body can produce a matching geometry.