Researchers identified a protein associated with breast cancer

IMAGE: Dr. Yan Chen (left) and Dr. Weibo Luo (right) discovered that the protein ZMYND8 may be a useful biomarker to indicate breast cancer that will spread. view more 

Credit: UT Southwestern Medical Center

DALLAS – April. 18, 2018 – Researchers at UT Southwestern Medical Center have identified a protein that is strongly associated with metastatic breast cancer and that could be a target for future therapies.

High levels of the protein ZMYND8 are correlated with poor survival in breast cancer patients, said Dr. Weibo Luo, Assistant Professor of Pathology and Pharmacology, and with the Harold C. Simmons Comprehensive Cancer Center.

Previous research has shown that breast cancer cells that are more aggressive in an oxygen-deprived, or hypoxic, environment. A protein family called hypoxia-inducible factor (HIF) controls responses to hypoxia, switching on pathways that lead to cancer cell growth and spread. “Our research shows that ZMYND8 is a regulator that activates hundreds of HIF-dependent oncogenes in breast cancer cells,” Dr. Luo said.

Research with a mouse model of breast cancer showed that depletion of ZMYND8 blocks the growth of new blood vessels in tumors and leads to breast cancer cell death.

“Our studies uncovered a feedback loop that amplifies


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