Question: Have you ever accidentally killed off important non - cancerous cells?

Francis Man answered on 13 Mar 2018:

As part of testing in the lab (in a dish, not in an animal), yes. I’ve sometimes put too much radiation in the immune cells and that killed them. I had to figure out what was the maximum amount I could use, now I know…
It also possible to kill the cells you’re working with if you’re not careful when handling them, that sort of things is especially frequent when you first learn how to work with cells.