Researchers Discover Why Childhood Cancer Cells Spread Aggressively

Metastasis is driving cancer-related deaths in children by exploiting the natural flexibility of young, developing cells, according to a research review reported by healthcare-in-europe.com.

Scientists have long struggled to explain why pediatric cancers spread aggressively despite carrying relatively few genetic mutations. That pattern is the direct opposite of what researchers observe in adult cancers.

Many childhood cancers arise from cells closely linked to developmental programs used during early life.

Lead researcher Dr. Darrell Green, from the University of East Anglia’s Norwich Medical School, explained the mechanism in the findings reported by healthcare-in-europe.com.

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The research team reviewed evidence from a wide range of childhood cancers. The evaluated conditions included neuroblastoma, Ewing sarcoma, osteosarcoma, medulloblastoma, and rhabdomyosarcoma.

The researchers propose that genetic changes determine which cellular identities cancer cells can adopt. Meanwhile, reversible changes in gene activity dictate whether those cells become aggressive, resistant to treatment, or capable of forming metastatic tumors.

Dr. Green noted that childhood cancer cells may already possess the ability to become metastatic without needing to acquire new mutations first.

This challenges the long-held assumption that cancers must acquire new mutations before they can metastasise.”

Future therapies might aim to stop cancer cells from entering the states that make them dangerous in the first place, rather than focusing solely on killing tumor cells or targeting mutated genes.

Doctors could eventually predict when cancers are preparing to spread using emerging technologies. These tools include single-cell analysis, monitoring of circulating tumor cells, and advanced computer modelling to help track changes within tumors.

The researchers stress that the work does not represent a new treatment and that more research is needed. The research was led by the University of East Anglia in collaboration with Liverpool John Moores University.