Henrietta Lacks's cancer cells were taken without consent in 1951 and became the first immortal human cell line. They've outweighed her body 30,000× over by now.
From Wikipedia
HeLa is an immortalized cell line used in scientific research. It is the oldest human cell line and one of the most commonly used. HeLa cells are durable and prolific, allowing for extensive applications in scientific study. The line is derived from cervical cancer cells taken on February 8, 1951, from Henrietta Lacks, a 31-year-old African-American woman, after whom the line is named. Lacks died of cancer on October 4, 1951.