Scientists say Dandelion root killed more than 95% of colon cancer cells in the lab, but here's the catch

For most people, dandelion is just another wild plant growing by the roadside. But inside laboratories, scientists have been looking at it from a very different angle.A study published in Oncotarget found that an extract prepared from dandelion roots showed remarkable effects against colorectal cancer cells in laboratory experiments.

Researchers observed that the extract activated several mechanisms that pushed cancer cells toward programmed death, while leaving healthy cells largely unaffected.The findings have attracted attention because one of the biggest challenges in cancer treatment is drug resistance. Tumours often adapt when only one biological pathway is targeted. A natural compound capable of acting through multiple routes could provide important clues for future therapies.Still, experts stress that this research should not be interpreted as a home remedy or an alternative to medical treatment.

What exactly did the study find?

Researchers tested aqueous dandelion root extract (DRE) on aggressive colorectal cancer cell lines. According to the study, more than 95% of the cancer cells underwent programmed cell death within 48 hours. The effect was seen regardless of the p53 status, a gene often altered in cancers.Animal studies also produced promising results. Oral administration of the extract slowed the growth of human colon tumour models by more than 90%.

Scientists discovered that the extract did not rely on one mechanism alone. Instead, it activated multiple "death signalling pathways" inside cancer cells. The mixture contains naturally occurring compounds such as alpha-amyrin, beta-amyrin, lupeol and taraxasterol, all of which are believed to possess biological activity.This multi-target approach is particularly interesting because cancer cells often learn to escape treatments aimed at only one pathway.

Why scientists are interested in a multi-pathway attack

Cancer is not a single disease. It is a collection of cells that constantly evolve. One reason many treatments eventually stop working is because tumours become resistant over time.Dr CH Dheeraj, Consultant - Medical Oncology, SRM Prime Hospital, Chennai, explained, "The results of this study are of great interest scientifically, as they provide evidence that compounds derived from dandelion root may have the ability to affect multiple mechanisms of cell death in colorectal cancer cells at the same time.

In treating cancers, it would be beneficial to affect multiple biological pathways simultaneously, as one of the main problems with treating cancers is that they frequently become resistant to treatment once a single pathway has been inhibited.

"This ability to attack several vulnerabilities at once is what makes researchers curious. It does not mean a cure has been found. Rather, it opens the door to identifying molecules that could one day be developed into medicines.

Why patients should not replace their treatment with Dandelion supplements

Despite the excitement, doctors are urging people to keep expectations grounded.Dr Dheeraj cautioned, "However, it is important for the reader to be aware that this is laboratory-based research and should not be interpreted as recommending dandelion root extract as a treatment for colorectal cancer. The primary utility of studies like this is to give scientists insight into possible new molecules to pursue for the eventual development of therapeutic applications."Laboratory studies are only the first step. Many substances that work in test tubes fail when tested in humans. Human bodies are far more complex, and factors such as absorption, dosage, metabolism and safety need extensive evaluation.Simply drinking dandelion tea or taking supplements does not guarantee the same effects seen in laboratory conditions.

What should people focus on instead?

Doctors emphasise that early detection remains one of the strongest weapons against colorectal cancer.Dr Dheeraj added, "Until research into plant-derived compounds is further advanced, patients should continue to follow evidence-based guidelines for screening, seek timely diagnosis and access standard treatment for cancer."

Symptoms that should never be ignored include:

Screening, especially after the age of 45 or earlier for those with family history, can detect colorectal cancer at stages when treatment is most effective.Medical experts consultedThis article includes expert inputs shared with TOI Health by:Dr CH Dheeraj, Consultant - Medical Oncology, SRM Prime Hospital, Chennai.Inputs were used to explain what scientists discovered about dandelion root extract, how it triggered multiple cell death pathways in colorectal cancer cells, and why experts caution that these findings should not be viewed as a substitute for proven cancer treatments.