A low molecular weight PSMA-based fluorescent imaging agent for cancer.

A low molecular weight PSMA-based fluorescent imaging agent for cancer.
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DOI:
10.1016/j.bbrc.2009.10.017
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发表时间:
2009-12-18
影响因子:
3.1
通讯作者:
Pomper, Martin G.
Pomper, Martin G.
中科院分区:
生物学4区
文献类型:
--
作者:
Chen, Ying;Dhara, Surajit;Banerjee, Sangeeta Ray;Byun, Youngjoo;Pullambhatla, Mrudula;Mease, Ronnie C.;Pomper, Martin G.

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We synthesized YC-27 3 to provide a fluorescent imaging probe for the prostate-specific membrane antigen (PSMA), a marker for hormone-independent prostate cancer and tumor neovasculature, with suitable pharmacokinetics for use in vivo. Immediate precursor trifluoroacetate salt of 2-(3-{5-[7-(5-amino-1-carboxy-pentylcarbamoyl)-heptanoylamino]-1-carboxy-pentyl}-ureido)-pentanedioic acid 2 was conjugated with a commercially available near-infrared light emitting dye (IRDye 800CW) to provide 3 in 72% yield. YC-27 3 demonstrated a PSMA inhibitory activity of 0.37 nM and was capable of generating target-to-nontarget ratios of at least 10 in PSMA-expressing PC3-PIP vs. PSMA-negative PC3-flu tumors in vivo. YC-27 3 may be useful for study of PSMA-expressing tissue in preclinical models or for intraoperative guidance.
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