HeLa cells, an unusual line of human cells retrieved from a cancer patient, have aided in many areas of scientific discovery and medical improvement.
What are HeLa Cells?
- Henrietta Lacks was diagnosed with cervical cancer in 1951 and had a tissue biopsy at Johns Hopkins Hospital.
- A subset of Lacks’ tumour cells, later dubbed HeLa cells, exhibited a unique characteristic – the ability to continually divide and replicate in laboratory circumstances.
HeLa Cells’ Distinctive Characteristics
- Endless Proliferation: Unlike normal human cells, which have finite lifespans, HeLa cells showed continuous division, allowing them to develop indefinitely.
- This characteristic revolutionised research by providing a consistent and versatile medium for studies.
Usefulness in Scientific Progress
- Polio Vaccine: HeLa cells were critical in culturing the poliovirus, which aided in the development of the polio vaccine.
- Cancer Research: HeLa cells aided in the testing of medicines and the study of disease causes.
- Insights into Genetics: These cells were the first human cells to be cloned, expanding our understanding of genetics and cellular biology.
- HeLa cells revolutionised drug testing, assisting in drug development and evaluating safety profiles.
- Space Exploration: Their adventure took them to space, where they helped to comprehend cellular behaviour in microgravity.
Controversies and Ethical Dilemmas
- Absence of Informed agreement: The use of HeLa cells without Henrietta Lacks’ agreement created ethical problems, particularly in the context of medical experiments on African American patients.
- Patient Rights and Recognition: Discussions arose over patient rights, reasonable recompense, and the recognition of individuals whose contributions fuel scientific advancement.
Source: https://m.economictimes.com/news/politics-and-nation/kejriwal-slams-proposed-bill-to-alter-election-commissioner-selection-process/articleshow/102602088.cms