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Pharmaceuticals 2012, 5(1), 79-93; doi:10.3390/ph5010079

89Zr-Radiolabeled Trastuzumab Imaging in Orthotopic and Metastatic Breast Tumors

1
Department of Radiation Oncology, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO 63110, USA
2
Department of Radiological Sciences, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO 63110, USA
*
Author to whom correspondence should be addressed.
Received: 16 November 2011 / Revised: 14 December 2011 / Accepted: 22 December 2011 / Published: 5 January 2012
(This article belongs to the Special Issue Biologics)
View Full-Text   |   Download PDF [699 KB, uploaded 5 January 2012]   |  

Abstract

The human epidermal growth factor receptor 2 (HER2/neu) is overexpressed in 20–30% of breast cancers and is associated with tumor growth, angiogenesis, and development of distant metastases. Trastuzumab, an anti-HER2 monoclonal antibody, is used for the treatment of HER2 positive breast cancer and clinical efficacy of this agent is dependent on HER2 expression. Targeted PET imaging of HER2 with radiolabeled trastuzumab may be used to determine HER2 expression levels and guide therapy selection. The purpose of the current study was to evaluate a facile 89Zr-trastuzumab preparation method that can be efficiently applied for clinical grade production. Also, relative HER2 expression levels in orthotopic and metastatic breast cancer models were assessed by PET imaging using the 89Zr-trastuzumab produced by this simpler method. View Full-Text
Keywords: HER2; PET; 89Zr; immunoPET HER2; PET; 89Zr; immunoPET
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Chang, A.J.; DeSilva, R.; Jain, S.; Lears, K.; Rogers, B.; Lapi, S. 89Zr-Radiolabeled Trastuzumab Imaging in Orthotopic and Metastatic Breast Tumors. Pharmaceuticals 2012, 5, 79-93.

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