title: N-3-[18F]fluoropropylputrescine as potential PET imaging agent for prostate and prostate derived tumors.
abstract: A potential PET imagining agent for prostate and prostate derived tumors, N-3-[18F]fluoropropylputrescine, has been prepared. The radiochemical yield was 7-10% at end-of-synthesis (EOS) and the specific activity was greater than 1.1 Ci/mumol (overall synthesis time was 1.5 hr). In vivo biodistribution in mature male rats showed high prostate uptake. In rats that were pretreated with alpha-difluoromethylornithine and dihydrotestosterone propionate, the prostate to muscle ratio and prostate to blood ratio increased significantly. This high target uptake and target to nontarget ratio indicates the potential of this compound as a prostate imaging agent.
authors.affiliation: Edward Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri 63110.
authors.forename: D R
authors.initials: DR
authors.lastname: Hwang
authors.forename: L X
authors.initials: LX
authors.lastname: Lang
authors.forename: C J
authors.initials: CJ
authors.lastname: Mathias
authors.forename: D
authors.initials: D
authors.lastname: Kadmon
authors.forename: M J
authors.initials: MJ
authors.lastname: Welch
mesh_terms: D000818:Animals; D002250:Carbon Radioisotopes; D002460:Cell Line; D013196:Dihydrotestosterone / Q000031:analogs & derivatives / Q000494:pharmacology; D000518:Eflornithine / Q000494:pharmacology; D006801:Humans; D008297:Male; D011467:Prostate / Q000187:drug effects / Q000378:metabolism; D011471:Prostatic Neoplasms / Q000000981:diagnostic imaging* / Q000378:metabolism; D011700:Putrescine / Q000031:analogs & derivatives* / Q000493:pharmacokinetics; D051381:Rats; D011919:Rats, Inbred Strains; D014018:Tissue Distribution; D014055:Tomography, Emission-Computed; D014407:Tumor Cells, Cultured / Q000000981:diagnostic imaging
chemical_list: D002250:Carbon Radioisotopes; D013196:Dihydrotestosterone; C060199:N-3-fluoropropylputrescine; C030445:dihydrotestosterone propionate; D011700:Putrescine; D000518:Eflornithine