Plausible way to circumvent drug resistance in breast cancer cells

[News]

Breast cancer cells that mutate to resist drug treatment survive by establishing tiny pumps on their surface that reject the drugs as they penetrate the cell membrane - making the cancer insensitive to chemotherapy drugs even after repeated use.

More... (http://www.news-medical.net/news/20110929/Plausible-way-to-circumvent-drug-resistance-in-breast-cancer-cells.aspx)