Abstract
A noninvasive technology that quantitatively measures the activity of oncogenic signaling pathways could have a broad impact on cancer diagnosis and treatment with targeted therapies. Here we describe the development of 89Zr-desferrioxamine-labeled transferrin (89Zr- transferrin), a new positron emission tomography (PET) radiotracer that binds the transferrin receptor 1 (TFRC, CD71) with high avidity. The use of 89Zr-transferrin produces high-contrast PET images that quantitatively reflect treatment-induced changes in MYC-regulated TFRC expression in a MYC-driven prostate cancer xenograft model. Moreover, 89Zr-transferrin imaging can detect the in situ development of prostate cancer in a transgenic MYC prostate cancer model, as well as in prostatic intraepithelial neoplasia (PIN) before histological or anatomic evidence of invasive cancer. These preclinical data establish 89Zr-transferrin as a sensitive tool for noninvasive measurement of oncogene-driven TFRC expression in prostate and potentially other cancers, with prospective near-term clinical application.
Original language | English (US) |
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Pages (from-to) | 1586-1591 |
Number of pages | 6 |
Journal | Nature medicine |
Volume | 18 |
Issue number | 10 |
DOIs | |
State | Published - Oct 2012 |
Externally published | Yes |
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)