Feb 25, 2016

The Legacy of Henrietta Lacks: How One Woman’s Cells Changed Modern Medicine

In 1951, a young African American mother named Henrietta Lacks unknowingly became the source of one of the most significant breakthroughs in medical science. At just 30 years old, Henrietta visited Johns Hopkins Hospital—one of the few hospitals at the time that treated Black patients—for help with an aggressive form of cervical cancer. During her treatment, doctors removed a small sample of her tumor and passed it along to Dr. George Gey, the head of the hospital’s tissue culture lab.

Back then, informed consent wasn’t a legal or ethical requirement, and Henrietta was never told that her cells had been taken—or that they would live on long after her death.


The Birth of the First Immortal Human Cell Line

Unlike normal human cells, which typically stop dividing after about 20 to 50 cycles, Henrietta’s cells—now known as HeLa cells—did something extraordinary. They kept dividing. Not just for days or weeks, but indefinitely.

This discovery stunned the scientific community. HeLa cells became the first immortal human cell line, meaning they could be grown endlessly in laboratories under the right conditions. Researchers around the world quickly recognized their value, and the cells were soon mass-produced and shipped globally for scientific study.

In fact, HeLa cells played a key role in some of the most important medical advances of the 20th century, including:

  • Jonas Salk’s development of the polio vaccine (1954)
  • Breakthroughs in cancer research and tumor biology
  • The development of anticancer drugs
  • Studies related to AIDS, genetic mapping, and cell biology

Despite their widespread use, Henrietta’s name—and her story—remained largely unknown for decades.


A Family in the Dark

Henrietta Lacks passed away just eight months after her diagnosis, in October 1951, as the cancer spread rapidly throughout her body. That very day, Dr. Gey appeared on television, holding a vial of HeLa cells and proclaiming their potential to help cure cancer—without ever mentioning the woman behind them.

It wasn’t until 25 years later that the Lacks family learned that Henrietta’s cells had not only survived but had been shared, studied, and even sold worldwide—without their knowledge, consent, or compensation.

Despite the enormous contributions of HeLa cells to science and medicine, neither Henrietta nor her family received any formal recognition or financial benefit for decades.


The Story Finally Told

Though a few newspaper stories surfaced over the years, it wasn’t until 2010 that the full story of Henrietta Lacks reached a broad audience. That year, science journalist Rebecca Skloot published The Immortal Life of Henrietta Lacks, a best-selling book that brought international attention to the ethical issues surrounding the use of HeLa cells. The book spent over two years on the New York Times Best Seller List and sparked global conversations about ethics in biomedical research, informed consent, and racial inequality in medicine.


Continuing Controversy and Ethical Progress

In March 2013, German scientists published the entire genome of HeLa cells—again without the Lacks family’s consent. The move reignited public concern about the ongoing lack of oversight and respect for Henrietta’s legacy.

Later that year, the U.S. National Institutes of Health (NIH) reached an agreement with the Lacks family. The deal gave the family limited control over who could access HeLa cell genetic data, marking a small but significant step toward ethical transparency. However, even now, no financial compensation has been granted to the Lacks family, despite the billions of dollars’ worth of research and industry fueled by HeLa cells.


The Human Face Behind a Scientific Revolution

Henrietta Lacks was not a scientist, nor did she ever imagine that her cells would revolutionize medicine. But her legacy lives on in every vaccine, every cancer treatment, and every cell biology breakthrough made possible by HeLa cells.

Her story is a powerful reminder that behind every scientific discovery is a human being—whose rights, dignity, and story deserve to be honored.


A culture of HeLa cells, originally obtained from human cervical cancer cells. This line of cells has been dividing since 1951 and is now the most commonly used cell line in biological and drug research.

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