P-Rex1 expression may develop metastasis in breast cancer patients

[News]

Overexpression or hyperactivation of ErbB cell-surface receptors drives the growth of many breast cancers. Drugs, like Herceptin, that block the receptors' signals halt tumor progression in some patients.

More... (http://www.news-medical.net/news/20101223/P-Rex1-expression-may-develop-metastasis-in-breast-cancer-patients.aspx)