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In this way, the cells circumvent the Hayflick limit, which is the limited number of cell divisions that most normal cells can undergo before becoming senescent.

Horizontal gene transfer from human papillomavirus 18 (HPV18) to human cervical cells created the He La genome, which is different from Henrietta Lacks' genome in various ways, including its number of chromosomes.

The cells were propagated by George Otto Gey shortly before Lacks died of her cancer in 1951.

This was the first human cell line to prove successful in vitro, which was a scientific achievement with profound future benefit to medical research.

This issue and Lacks' situation were brought up in the Supreme Court of California case of Moore v. The court ruled that a person's discarded tissue and cells are not his or her property and can be commercialized.

The total number of He La cells that have been propagated in cell culture far exceeds the total number of cells that were in Henrietta Lacks' body.The committee consists of six members including representatives from the medical, scientific, and bioethics fields, as well as two members of the Lacks family.In an interview, Collins praised the Lacks family’s willingness to participate in this situation that was thrust upon them.Gey freely donated these cells along with the tools and processes that his lab developed to any scientist requesting them simply for the benefit of science.Neither Lacks nor her family gave permission to harvest the cells but, at that time, permission was neither required nor customarily sought.

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