Understanding RNA Changes in High-Risk and Relapsed Neuroblastoma - Pilot Study
1) What is this research about?
Every cell in the body contains DNA, which acts as an instruction manual for making the proteins needed for normal growth and function. Before proteins can be produced, DNA is copied into a related molecule called RNA. RNA carries these instructions and helps control how proteins are made. RNA molecules can contain small chemical changes, known as RNA modifications, which act like molecular "switches" that influence whether an RNA molecule is used to make a protein or broken down. These modifications are increasingly recognised as important regulators of cancer development and treatment resistance. This project will investigate how RNA modifications differ between low-risk, high-risk, and relapsed neuroblastoma, a childhood cancer of the nervous system. Using advanced sequencing technology, researchers will analyse tumour samples to identify patterns of RNA modifications associated with aggressive disease and treatment relapse.
2) Why is it important?
Children with high-risk or relapsed neuroblastoma often have poorer outcomes and fewer effective treatment options. While genetic changes in neuroblastoma have been extensively studied, much less is known about how RNA modifications contribute to tumour growth, survival, and resistance to treatment. Understanding these RNA changes could reveal new biological mechanisms that drive aggressive disease and help explain why some tumours return after treatment.
3) What are the researchers doing?
The team will use cutting-edge direct RNA sequencing technology to study RNA molecules from neuroblastoma tumour samples. This approach allows researchers to detect multiple types of RNA modifications while simultaneously measuring gene activity and RNA processing. By comparing samples from low-risk, high-risk, and relapsed tumours, including matched samples collected before and after chemotherapy, the researchers will identify RNA modification patterns associated with disease progression and treatment resistance.
4) How could this help patients in the future?
The study aims to identify RNA modification signatures that could serve as biomarkers for aggressive or relapsed neuroblastoma. It may also reveal new drug targets by identifying proteins that control these modifications. In the future, this could lead to improved risk stratification, earlier detection of treatment resistance, and the development of more effective, targeted therapies for children with neuroblastoma.