Major breakthrough of George and Margaret gey?

George and Margaret Gey were pivotal in the development of the HeLa cell line, derived from Cervical cancer cells taken from Henrietta Lacks in 1951 without her knowledge. Their work led to the first immortal human cell line, which has been instrumental in numerous medical breakthroughs, including cancer research, vaccine development, and advancements in genetics. The Geys' contributions highlighted the ethical issues surrounding medical research and the importance of informed consent. Their legacy continues to influence both science and discussions about ethics in research.