Scientists at the University of Minnesota say they have discovered an enzyme that could play a key role in causing the majority of breast cancers -- and possibly other cancers as well…Dr. Matthew Goetz, a breast cancer specialist at the Mayo Clinic, agreed but said the discovery eventually could lead to earlier and better treatments. He noted that tumors with large numbers of mutations often become resistant to treatment, so preventing those mutations could save lives."I do think it's a big deal," said Goetz, who is working with Harris to study the enzyme's effect on patients. But, he added, "there's a lot of work to be done."
Star Tribune by Maura Lerner