ASCT2, which is a Na(+)-dependent amino acid transporter, and to a lesser extent Na(+)-independent transporters play a role in the uptake of (14)C-FACBC by DU145 cells. Among the Na(+)-independent transporters, system L transporters are also involved in the transport of (14)C-FACBC. Moreover, (14)C-FACBC is not incorporated into proteins in cells. These findings suggest a possible mechanism of anti-(18)F-FACBC PET for prostate cancer.
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Okudaira et al. (2011) studied this question.
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