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result sql = Effects of 2-methoxyestradiol on proliferation, apoptosis and PET-tracer uptake in human prostate cancer cell aggregates.
Effects of 2-methoxyestradiol on proliferation, apoptosis and PET-tracer uptake in human prostate cancer cell aggregates.
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result sql = The purpose of this study was to investigate the potential use of PET in vivo to record cytotoxic effects of 2-methoxyestradiol (2-ME), an endogenous metabolite of 17beta-estradiol. The anti-proliferative and pro-apoptotic effects of 2-ME on human prostate cancer cell (PC3) aggregates in vitro, were correlated with the uptake of fluoro-deoxy-D-glucose, FMAU and choline labelled with 18F, 11C, or 3H. 2-ME clearly reduced growth of PC3 aggregates and induced apoptosis in a dose-dependent manner. However, the uptake of the putative proliferation markers 11C-FMAU or 3H-choline failed to record the growth inhibitory effects of 2-ME on PC3 cell aggregates. The uptake of 18F-FDG was used as a marker for effects on cellular metabolism and also failed to show any dose-dependent effects in PC3 aggregates. The use of these PET-tracers in vivo is therefore not recommended in order to evaluate the cytotoxic effects of 2-ME on human prostate cancer cells.

Publication: Nucl. Med. Biol. 2004 Oct ;31(7)::867-74.
Publication Date: 2004 Oct
Study Author(s): Davoodpour, Padideh;Bergström, Mats;Landström, Maréne;
Institution: Ludwig Institute for Cancer Research, Box 595, Biomedical Center, Uppsala, Sweden.
Shortcut link to this study:
The purpose of this study was to investigate the potential use of PET in vivo to record cytotoxic effects of 2-methoxyestradiol (2-ME), an endogenous metabolite of 17beta-estradiol. The anti-proliferative and pro-apoptotic effects of 2-ME on human prostate cancer cell (PC3) aggregates in vitro, were correlated with the uptake of fluoro-deoxy-D-glucose, FMAU and choline labelled with 18F, 11C, or 3H. 2-ME clearly reduced growth of PC3 aggregates and induced apoptosis in a dose-dependent manner. However, the uptake of the putative proliferation markers 11C-FMAU or 3H-choline failed to record the growth inhibitory effects of 2-ME on PC3 cell aggregates. The uptake of 18F-FDG was used as a marker for effects on cellular metabolism and also failed to show any dose-dependent effects in PC3 aggregates. The use of these PET-tracers in vivo is therefore not recommended in order to evaluate the cytotoxic effects of 2-ME on human prostate cancer cells.
PMID: 15464388

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