Henrietta Lacks and the Immortal HeLa Cells

In medical science, few stories are as compelling and ethically complex as that of Henrietta Lacks and the HeLa cells. This blog post explores the legacy of Henrietta Lacks, whose cells have become a cornerstone in medical research, leading to groundbreaking discoveries while also raising important questions about ethics and consent.

Microscope image of HeLa cells: The green represents the actin protein and the red, the vimentin protein. Both are important proteins in the cell's cytoskeleton. The blue indicates the nucleus, which contains DNA. Image credit: Wikimedia Commons, 'HeLa cells stained with antibody to actin (green), vimentin (red) and DNA (blue)', licensed under CC BY-SA 3.0. Available here.

Henrietta Lacks: The Woman Behind the Cells

Henrietta Lacks was an African-American woman whose cancer cells were taken without her knowledge or consent by researchers at Johns Hopkins Hospital in 1951. Lacks, a mother of five, had been diagnosed with cervical cancer, and during her treatment, a sample of her tumor was collected. Tragically, Henrietta Lacks passed away later that year at the age of 31, but her cells lived on (1).

The Discovery of HeLa Cells

The cells taken from Lacks, known as HeLa cells (from the first two letters of her first and last names), were the first human cells to be successfully cultured and grown outside the body by Dr. George Gey, a researcher at Johns Hopkins. Unlike other cells that died after a few days, HeLa cells continued to divide indefinitely. This was a monumental breakthrough, as it provided an immortal cell line for scientific research (2).

Impact on Medical Research

HeLa cells have been instrumental in numerous medical advancements. They played a crucial role in developing the polio vaccine in the 1950s, were pivotal in cancer research, contributed to our understanding of viruses, and were used in the development of in vitro fertilization techniques. The cells have been used in more than 74,000 studies and have been instrumental in understanding the effects of radiation and toxic substances, gene mapping, and many other areas (3).

Ethical Considerations and Controversy

The story of Henrietta Lacks and HeLa cells raises significant ethical questions. The cells were taken and used for research without Lacks' or her family's consent, highlighting issues of patient rights and informed consent. For decades, her family was unaware of the cells' existence and use. It wasn't until the 1970s that the Lacks family learned about the HeLa cells, sparking a debate about privacy, consent, and compensation in medical research (4).

Legacy and Recognition

In recent years, there has been a growing recognition of Henrietta Lacks' contribution to science. Her story has been the subject of books, documentaries, and public discussions, raising awareness about the ethical dimensions of medical research. In 2010, the Smithsonian Institution and Johns Hopkins University hosted a symposium to honor her legacy, and in 2021, the World Health Organization posthumously awarded Henrietta Lacks the Director-General’s Award for her contributions to medical science (5).

Summary

The story of Henrietta Lacks and the HeLa cells is a poignant reminder of the complex interplay between scientific progress and ethical responsibility. While HeLa cells have been invaluable to medical research, Henrietta Lacks' story underscores the importance of consent and respect for individual rights in scientific endeavors.

References and further reading

1. The Immortal Life of Henrietta Lacks. Crown Publishing Group.

2. Henrietta Lacks, HeLa cells, and cell culture contamination. Archives of Pathology & Laboratory Medicine.

3. HeLa cells 50 years on: the good, the bad and the ugly. Nature Reviews Cancer.

4. Deal done over HeLa cell line. Nature.

5. World Health Organization. WHO Director-General’s Award for Global Health: Henrietta Lacks. [Press release]