Study Offers New Model for Breast Cancer.

(From AScribe)

CAMBRIDGE, Mass. -- The last few years have witnessed critical advances in breast cancer therapies. Still, the disease afflicts one in eight American women, and scientists have yet to develop a living model with which they can study the intricacies of human breast-tumor behavior.

Now, a team in the lab of scientist Robert Weinberg at Whitehead Institute for Biomedical Research has successfully grafted human breast tissue into the mammary glands of mice. As a result, the mice formed functional breasts that are capable of producing human breast milk. More importantly, some of these mice were engineered to form early-stage breast tumors like …