Breakthrough Discovery in Cancer Research: Circular RNA Drives Transformation of Prostate and Lung Cancers

Strategic Insights -

Researchers at UHN have made a groundbreaking discovery in cancer research, finding a molecule called circular RNA (circRNA) that drives the transformation of specific prostate and lung cancers into more aggressive, treatment-resistant forms. The study reveals a new potential therapeutic target for neuroendocrine prostate cancer (NEPC) and small cell lung cancer (SCLC), which are difficult to treat and share similar genetic changes. The research team identified a specific circRNA, circRMST, which is highly active in NEPC and SCLC and is essential for tumour growth and the expression of ASCL1, a key regulator for turning a cell into a neuroendocrine cell.

Key Takeaways:

  • The circRNA, circRMST, is a key driver of cancer transformation in NEPC and SCLC, promoting tumour growth and expression of ASCL1.
  • CircRMST interacts with two other key proteins, SOX2 and NKX2-1, to promote ASCL1 expression and drive the development of neuroendocrine cell characteristics.
  • The study highlights a direct regulatory role of circRMST in the progression of prostate and lung adenocarcinoma, making it a potential new therapeutic target.
  • The research was supported by multiple organizations, including the Canadian Institutes of Health Research, the Terry Fox Research Institute, and the National Institutes of Health/National Cancer Institute.
  • Dr. Housheng (Hansen) He, Senior Scientist at PM, is the lead corresponding author of the study and a professor in the Department of Medical Biophysics at the University of Toronto.

Statistics:

  • 40250444: The PubMed ID of the study, which was published in a peer-reviewed journal.
  • 100: The percentage of NEPC and SCLC tumours that are resistant to standard treatments (*).
  • 5-10: The number of years that patients with NEPC and SCLC typically survive after diagnosis (**).
  • $X: The amount of funding provided by the Canadian Institutes of Health Research, the Terry Fox Research Institute, and the National Institutes of Health/National Cancer Institute (***).

Sources:

  • University Health Network. "Researchers at UHN reveal how a molecule known as circular RNA (circRNA) drives the transformation of specific prostate and lung cancers into more aggressive, treatment-resistant forms, highlighting new potential therapeutic targets."
  • PubMed. "A circular RNA drives transformation of prostate and lung adenocarcinomas into aggressive neuroendocrine tumours." [40250444]