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- W2017789261 abstract "The excitatory amino acid transporters (EAATs) play a pivotal role in regulating the synaptic concentration of glutamate in the mammalian central nervous system. To date, five different subtypes have been identified, named EAAT15 in humans (and GLAST, GLT-1, EAAC1, EAAT4, and EAAT5, respectively, in rodents). Recently, we have published and presented a structure–activity relationship (SAR) study of a novel class of selective inhibitors of EAAT1 (and GLAST), with the analogs UCPH-101 (IC50 = 0.66 μM) and UCPH-102 (IC50 = 0.43 μM) being the most potent inhibitors in the series. In this paper, we present the design, synthesis and pharmacological evaluation of six coumarin-based fluorescent analogs of UCPH-101/102 as subtype-selective inhibitors at EAAT1. Analogs 1114 failed to inhibit EAAT1 function (IC50 values >300 μM), whereas analogs 15 and UCPH-102F inhibited EAAT1 with IC50 values in the medium micromolar range (17 μM and 14 μM, respectively). Under physiological pH no fluorescence was observed for analog 15, while a bright blue fluorescence emission was observed for analog UCPH-102F. Regrettably, under confocal laser scanning microscopy selective visualization of expression of EAAT1 over EAAT3 was not possible due to nonspecific binding of UCPH-102F." @default.
- W2017789261 created "2016-06-24" @default.
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- W2017789261 date "2012-12-01" @default.
- W2017789261 modified "2023-10-02" @default.
- W2017789261 title "Design, synthesis and pharmacological characterization of coumarin-based fluorescent analogs of excitatory amino acid transporter subtype 1 selective inhibitors, UCPH-101 and UCPH-102" @default.
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- W2017789261 doi "https://doi.org/10.1016/j.bmc.2012.09.049" @default.
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