Breast Cancer

Microscopy of breast cancer cells
Breast cancer cells under a microscope. (Wikimedia Commons / Dr. Cecil Fox, public domain)

Breast cancer is the most common cancer worldwide. Roughly 2.3 million people are diagnosed every year. About 70,000 of them carry inherited mutations in BRCA1, a protein whose job is repairing DNA damage. When BRCA1 fails, the damage piles up.

Among the rest, one of the most common drivers is Her2 — a kinase in the EGFR family that signals cells to divide. When over-produced or mutated, Her2 jams "on" and the cells keep growing.

Folding@home simulates both. We watch BRCA1 lose its grip and Her2 lock up, hunting for the moments where a treatment could step in. The Chodera lab leads the Her2 work; newer simulations explore mutations in BRCA1.

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