New Target for Triple-Negative Breast Cancer Identified

by Dr. Trupti Shirole on  February 8, 2015 at 5:07 PM Cancer News
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A new study by UT Southwestern Medical Center scientists has linked deficiency in a gene that controls autophagy, a process that recycles cell waste, with the triple-negative breast cancer.
 New Target for Triple-Negative Breast Cancer Identified
New Target for Triple-Negative Breast Cancer Identified

The scientists found based on analysis of two large breast cancer databases, reduced activity of an autophagy gene, beclin 1, was related to both a higher incidence of triple-negative breast cancer and a poorer prognosis for breast cancer patients. Dr. Beth Levine, Director of the Center for Autophagy Research, said, "With low beclin 1 expression, you have up to a 35-fold higher risk of having triple-negative breast cancer."

Low levels of beclin 1 activity was also correlated with worse outcomes. Thus increasing beclin 1 activity could become a new therapy for breast cancer patients, especially those with the triple-negative type. Several approved drugs that happen to increase beclin 1 activity are already in use for other types of cancer. They include four classes of drugs- inhibitors of either beclin 1/BCL-2 binding, protein kinase B (AKT), epidermal growth factor receptor (EGFR), or HER2.

The study appears in the online journal EBioMedicine.

Source: Medindia

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