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Researchers discover new way to target secondary breast cancer that has spread to the brain

Date:
January 28, 2022
Source:
RCSI
Summary:
A study has revealed a potential new way to treat secondary breast cancer that has spread to the brain, using existing drugs.
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A study led by researchers at RCSI University of Medicine and Health Sciences and the Beaumont RCSI Cancer Centre (BRCC) has revealed a potential new way to treat secondary breast cancer that has spread to the brain, using existing drugs.

The study, published in Nature Communications, was funded by Breast Cancer Ireland with support from Breast Cancer Now and Science Foundation Ireland.

Most breast cancer related deaths are a result of treatment relapse leading to spread of tumours to many organs around the body. When secondary breast cancer, also known as metastatic breast cancer, spreads to the brain it can be particularly aggressive, sometimes giving patients just months to live.

The RCSI study focused on genetically tracking the tumour evolution from diagnosis of primary breast to the metastatic spread in the brain in cancer patients. The researchers found that almost half of the tumours had changes in the way they repair their DNA, making these tumours vulnerable to an existing type of drug known as a PARP inhibitor. PARP inhibitor drugs work by preventing cancer cells to repair their DNA, which results in the cancer cells dying.

"There are inadequate treatment options for people with breast cancer that has spread to the brain and research focused on expanding treatment options is urgently needed. Our study represents an important development in getting one step closer to a potential treatment for patients with this devastating complication of breast cancer," commented Professor Leonie Young, the study's Principal Investigator.

"By uncovering these new vulnerabilities in DNA pathways in brain metastasis, our research opens up the possibility of novel treatment strategies for patients who previously had limited targeted therapy options," said study author Dr Damir Varešlija.

The research, led by Beaumont RCSI Cancer Centre investigators Professor Leonie Young, Dr Nicola Cosgrove, Dr Damir Varešlija and Professor Arnold Hill, was carried out in collaboration with the Mayo Clinic and University of Pittsburgh, USA.


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Materials provided by RCSI. Note: Content may be edited for style and length.


Journal Reference:

  1. Nicola Cosgrove, Damir Varešlija, Stephen Keelan, Ashuvinee Elangovan, Jennifer M. Atkinson, Sinéad Cocchiglia, Fiona T. Bane, Vikrant Singh, Simon Furney, Chunling Hu, Jodi M. Carter, Steven N. Hart, Siddhartha Yadav, Matthew P. Goetz, Arnold D. K. Hill, Steffi Oesterreich, Adrian V. Lee, Fergus J. Couch, Leonie S. Young. Mapping molecular subtype specific alterations in breast cancer brain metastases identifies clinically relevant vulnerabilities. Nature Communications, 2022; 13 (1) DOI: 10.1038/s41467-022-27987-5

Cite This Page:

RCSI. "Researchers discover new way to target secondary breast cancer that has spread to the brain." ScienceDaily. ScienceDaily, 28 January 2022. <www.sciencedaily.com/releases/2022/01/220128100747.htm>.
RCSI. (2022, January 28). Researchers discover new way to target secondary breast cancer that has spread to the brain. ScienceDaily. Retrieved March 28, 2024 from www.sciencedaily.com/releases/2022/01/220128100747.htm
RCSI. "Researchers discover new way to target secondary breast cancer that has spread to the brain." ScienceDaily. www.sciencedaily.com/releases/2022/01/220128100747.htm (accessed March 28, 2024).

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