Breast Cancer Stem Cells Express HER2, Even In 'Negative' Tumors, Study Finds

New research from the University of Michigan Comprehensive Cancer Center finds that the protein HER2 plays a role even in breast cancers that would traditionally be categorized as HER2-negative - and that the drug Herceptin , which targets HER2, may have an even greater role for treating breast cancer and preventing its spread.

http://www.medicalnewstoday.com/releases/256927.php