Location: University of Pennsylvania
The March 15, 2009, issue of Genes & Development reported that a study funded in part by the Mary Kay Ash Charitable Foundation produced a cancer research breakthrough. Led by Dr. Roger Greenberg, a 2008 cancer research grant recipient, researchers found that MERIT40, a previously unknown protein, works with other breast cancer genes to help repair damaged DNA.
Under normal conditions, the breast cancer gene BRCA1 orchestrates the repair of damaged DNA. When the BRCA1 gene is mutated and the repair pathway goes haywire, a woman's vulnerability to breast and ovarian cancers rises because the rate at which genes are altered increases.
Understanding how BRCA1 responds to damaged DNA can help scientists better fight cancer with chemotherapy. Further study of MERIT40 may also lead researchers to find other genes that increase vulnerability to breast cancer.