Mechanisms of Trastuzumab Resistance in Breast Cancer

ISSN: 1875-5992 (Online)
ISSN: 1871-5206 (Print)

Volume 16, 12 Issues, 2016

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Anti-Cancer Agents in Medicinal Chemistry

Formerly: Current Medicinal Chemistry - Anti-Cancer Agents

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Michelle Prudhomme
Universite Blaise Pascal - C.N.R.S
Aubiere Cedex

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Mechanisms of Trastuzumab Resistance in Breast Cancer

Anti-Cancer Agents in Medicinal Chemistry, 9(3): 348-355.

Author(s): Sara M. Tolaney and Ian E Krop.

Affiliation: Dana Farber Cancer Institute, 44 Binney Street, Mayer 2, Boston, MA 02115, USA.


Amplification of the HER2/neu gene occurs in approximately 20-25% of invasive breast cancers and is associated with poor patient outcome. The development of trastuzumab, a humanized monoclonal antibody that binds to the extracellular domain of HER2, has led to a significant improvement in outcomes of patients with HER2-positive breast cancer. However, many patients with HER2- positive metastatic breast cancer do not respond to trastuzumab, or eventually become resistant to it. In addition, approximately 15% of patients treated with trastuzumab-based therapy in the adjuvant setting relapse. In this review, we discuss the mechanisms of antitumor activity of trastuzumab, potential mechanisms contributing to its resistance, and novel therapeutic agents that may provide a means to overcome trastuzumab resistance.

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Article Details

Volume: 9
Issue Number: 3
First Page: 348
Last Page: 355
Page Count: 8
DOI: 10.2174/1871520610909030348
Price: $58

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