New Tool Unlocks Secrets of ‘Junk DNA,’ Opening New Paths for Precision Cancer Treatment

SYDNEY — Australian researchers have developed a new tool to investigate mysterious regions of the human genome once considered “junk DNA,” identifying thousands of potential molecular targets that could help pave the way for more precise approaches to cancer diagnosis and treatment, according to Australia’s QIMR Berghofer Medical Research Institute.

The new approach combines single-cell and spatial tissue analysis with computational modelling, allowing researchers to detect previously hidden molecules known as long non-coding RNAs (lncRNAs) and investigate how individual molecules may contribute to the growth of different types of cancer.

Researchers Identify More Than 219,000 Potential lncRNAs

The research team analyzed tissue samples from 13 types of cancer, including breast, brain, bowel and skin cancers.

Researchers identified 219,442 potential lncRNA molecules, of which 94,795 had never previously been documented.

According to the research, many of these newly identified molecules showed a strong likelihood of having biological functions.

Unlike protein-coding RNA, lncRNAs do not provide instructions for producing proteins. However, scientists are increasingly investigating their potential roles in regulating genes and other biological processes, including mechanisms associated with cancer.

Mapping Molecular Activity Inside Tumors

The researchers also mapped the three-dimensional locations of individual lncRNAs within cancer tissues and cells, providing a more detailed picture of where these molecules are found and how they may behave within tumors.

The team examined their interactions with cells, genes and other molecules, as well as the specific locations within tumors where those interactions occurred.

Combining molecular information with spatial data could help researchers better understand how these previously poorly characterized regions of the genome influence cancer biology.

Potential New Targets for Precision Cancer Medicine

The findings could provide researchers with thousands of potential molecular targets for further investigation, potentially contributing to the development of more precise cancer diagnostics and therapies.

However, further research will be required before these discoveries can be translated into clinical applications.

The next stage of the research will involve additional experiments to confirm the functions of individual lncRNAs and identify the most promising candidates for further development in cancer diagnosis and treatment.

The findings offer a new window into regions of the human genome that were once dismissed as “junk DNA,” potentially expanding scientists’ understanding of the molecular mechanisms underlying cancer and providing new directions for precision oncology research.

 

Source : Xinhua Thai News