Hela is a type of cell line that was derived from cervical cancer cells taken from a woman named Henrietta Lacks in 1951. These cells were the first human cells successfully cloned and have been used extensively in scientific research. They are known for their ability to divide indefinitely in laboratory conditions, making them invaluable for various studies, including cancer research and vaccine development. The Hela cells have contributed to numerous medical breakthroughs, including the development of the polio vaccine and advancements in cancer treatments. Their unique properties allow researchers to conduct experiments that would be difficult or impossible with other cell types, making Hela cells a cornerstone of modern biomedical research.