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- W2015249905 abstract "The development of effective cancer therapies has been hampered, in part, by the inability to non-invasively follow tumor progression from the initial cancerous lesion through to metastasis. We have previously shown that superparamagnetic iron oxide particles can be used as magnetic resonance imaging contrast agents to label embryonic, mesenchymal and hematopoietic stem cells in vivo. Improving the capacity to non-invasively image cancer progression is an appealing method that could be useful for assessing the efficacy of anticancer therapies. We have established that human prostate (LNCaP, DU145, PC3), rodent prostate (TRAMPC1, YPEN-1), human breast (MDA-MB-213) and mouse mammary (Myc/VEGF) cancer cell lines were readily labeled by fluorescent superparamagnetic sub-micron particles of iron oxide (MPIOs). The MPIOs were essentially inert with respect to cell proliferation and tumor formation. Fluorescence stereomicroscopy and three dimensional magnetic resonance imaging (MRI) determined that subcutaneous, intramuscular or orthotopically implanted labeled cancer cells could be imaged, in vivo, despite in some cases being undetectable by manual palpation. The MPIO-labeled cancer cells could also be imaged, in vivo, at least 6 weeks after implantation. The fluorescent MPIOs further allowed for the ex vivo identification of tumors cells from histological sections. This study demonstrates the feasibility of using fluorescent MPIOs in prostate and breast cancer cell lines as both a negative contrast agent for in vivo MRI as well as a fluorescent tumor marker for optical imaging in vivo and ex vivo." @default.
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- W2015249905 date "2005-11-30" @default.
- W2015249905 modified "2023-10-14" @default.
- W2015249905 title "Contrast-Enhanced In Vivo Imaging of Breast and Prostate Cancer Cells by MRI" @default.
- W2015249905 doi "https://doi.org/10.4161/cc.5.1.2295" @default.
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