can we make immortal people out of them
like, can we inject them into soldiers and make them fight the baddies with bear hands
they couldn't be used as a substitute for a human's cells. they've mutated to the point of not having the same number of chromosomes as a human cell. in addition, these cells still have the genome of the woman they came from, Henrietta Lacks.
a human body would either reject these cells, or the cells would multiply so fast they'd kill the person (cancer)