PT - JOURNAL ARTICLE AU - J.J. Gemmete AU - S.K. Mukherji TI - Trastuzumab (Herceptin) AID - 10.3174/ajnr.A2619 DP - 2011 Aug 03 TA - American Journal of Neuroradiology 4099 - http://www.ajnr.org/content/early/2011/08/04/ajnr.A2619.short 4100 - http://www.ajnr.org/content/early/2011/08/04/ajnr.A2619.full AB - SUMMARY: Herceptin (trastuzumab) is a human monoclonal antibody that interferes with the HER2 receptor. It is currently the only FDA-approved therapeutic antibody for HER2-positive breast cancer. This article will present the mechanism at action as well as the clinical role at this monoclonal antibody.