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Cancer's Dormant Cells: The Sleeper Threat Revealed
31 Aug
Summary
- Dormant cancer cells, also known as MRD, can remain inactive for years undetected.
- Immune shifts, hormones, inflammation, or genetic changes can reactivate dormant cells.
- Recurrence can appear locally, in nearby lymph nodes, or spread to distant organs.
Dormant cancer cells, also known as minimal residual disease (MRD), can lie inactive for years, evading detection and standard treatments. These cells, effectively in a prolonged snooze, can dodge the immune system and remain invisible on routine scans. Their eventual reactivation, leading to cancer recurrence, can be triggered by various internal bodily shifts.
According to Dr. Ashok Kumar Vaid, chairman of medical oncology at Medanta, Gurgaon, factors such as altered immune responses, hormonal changes, increased inflammation, or new genetic mutations within tumor cells can signal these dormant cells to awaken. This reactivation is not a reflection of any failure on the part of the patient or their healthcare providers.
The reappearance of cancer generally falls into three categories. It may emerge in the initial location, spread to adjacent lymph nodes or surrounding tissues, or metastasize to a completely different organ within the body. Understanding these mechanisms is crucial for managing and monitoring cancer survivors.
