DNA repair protein gene gone rogue may unlock new cancer treatments

An overabundance of a common DNA repair protein can mimic the effects of a mutation in the BRCA gene — a genetic flaw linked to hereditary breast and ovarian cancer — even in tumors that test negative for it, according to a new study led by Penn State College of Medicine researchers. The finding raises the possibility of more personalized cancer treatment for patients whose tumors don't carry the genetic mutations doctors typically screen for.