I promise

"I promise, Suzy... Even if it takes the rest of my life." -Nancy G. Brinker, Founder of Susan G. Komen for the Cure

What is TNBC

WHAT IS TRIPLE NEGATIVE BREAST CANCER?

Just in recent years, Triple Negative Breast Cancer (TNBC) has sparked interest in the news where instead of calling the tumor as ER-negative, PR-negative, and HER2-negative; researchers began using the shorthand term, "Triple Negative," dubbed the "new type" of breast cancer. Being Triple Negative, you don't have a targeted therapy and your only treatment option is chemotherapy.

Triple Negative Breast Cancer is seen in about 15% of all breast cancers. TNBC is a very aggressive cancer that tends to strike younger women, pre-menopause, especially among African-American women and women who have BRCA1 mutations. The tumor tends to be fast growing and is less likely to show up on an annual mammogram. TNBC is more likely to metastasis early on; has a high rate of recurrence in the first 2-3 years from diagnosis and has a poorer prognosis than other types of breast cancer due to lack of specific, targeted treatment for TNBC.

Saturday, March 23, 2013

1,6-Bisphosphate (FBP1), Key Enzyme Missing From Triple Negative Breast Cancer Cells


Dr. Peter Zhou
"Zhou's study, published in Cancer Cell, showed that the powerful transcription factor complex Snail-G9a-Dnmt1 is over-expressed in triple-negative breast cancer, inhibiting the enzyme 1,6-bisphosphate (FBP1). The loss of this enzyme shuts down the glucose anabolic pathway and promotes the glucose catabolic pathway, leading to a large amount of glucose entering the tumor cells and thus "feeding" the aggressive cancer. This metabolic switch empowers the triple-negative breast cancer cells to suck more glucose from the body, increasing macromolecule biosynthesis in tumor cells and maintaining ATP production despite a dearth of nutrients and an oxygen-free environment..." 
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