PET Imaging of Multidrug Resistance in Tumors Using 18F-Fluoropaclitaxel

Authors: A. Kurdziel, Karen; O. Kiesewetter, Dale

Source: Current Topics in Medicinal Chemistry, Volume 10, Number 17, December 2010 , pp. 1792-1798(7)

Publisher: Bentham Science Publishers

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Abstract:

The failure of solid tumors to respond to chemotherapy is a complicated and clinically frustrating issue. The ability to predict which tumors will respond to treatment could reduce the human and monetary costs of cancer therapy by allowing pro-active selection of a chemotherapeutic to which the tumor does not express resistance. PET/CT imaging with a radiolabeled form of paclitaxel, F-18 fluoropaclitaxel (FPAC), may be able to predict the uptake of paclitaxel in solid tumors, and as a substrate of P-glycoprotein, it may also predict which tumors exhibit multidrug resistance (MDR), a phenotype in which tumors fail to respond to a wide variety of chemically unrelated chemotherapeutic agents. This article reviews the synthetic, preclinical and early human data obtained during the development phase of this promising new radiopharmaceutical.
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