PMID- 26138193 OWN - NLM STAT- MEDLINE DCOM- 20160517 LR - 20200721 IS - 1464-3391 (Electronic) IS - 0968-0896 (Linking) VI - 23 IP - 15 DP - 2015 Aug 1 TI - Synthesis of new fluorinated analogs of GABA, Pregabalin bioisosteres, and their effects on [(3)H]GABA uptake by rat brain nerve terminals. PG - 4316-4323 LID - S0968-0896(15)00532-5 [pii] LID - 10.1016/j.bmc.2015.06.038 [doi] AB - Fluorinated analogs of natural substances take an essential place in the design of new biologically active compounds. New fluorinated analogs of gamma-aminobutyric acid, that is, beta-polyfluoroalkyl-GABAs (FGABAs), were synthesized with substituents: beta-CF3-beta-OH (1), beta-CF3 (2); beta-CF2CF2H (3). FGABAs are bioisosteres of Pregabalin (Lyrica(R), Pfizer's blockbuster drug, beta-i-Bu-GABA), and have lipophilicity close to this medicine. The effects of synthesized FGABAs on [(3)H]GABA uptake by isolated rat brain nerve terminals (synaptosomes) were assessed and compared with those of Pregabalin. FGABAs 1-3 (100muM) did not influence the initial velocity of [(3)H]GABA uptake when applied acutely, whereas an increase in this parameter was found after preliminary incubation of FGABAs with synaptosomes. Pregabalin after preliminary incubation with synaptosomes caused unidirectional changes in the initial velocity of [(3)H]GABA uptake. Using specific inhibitors of GAT1 and GAT3, NO-711 and SNAP5114, respectively, the ability of FGABAs 1-3 to influence non-GAT1 and non-GAT3 uptake activity of nerve terminals was analyzed, but no specificity was found. Therefore, new synthesized FGABAs are structural but not functional analogs of GABA (because they did not inhibit synaptosomal [(3)H]GABA uptake). Moreover, FGABAs are able to increase the initial velocity of [(3)H]GABA uptake by synaptosomes, and this effect is higher than that of Pregabalin. CI - Copyright (c) 2015 Elsevier Ltd. All rights reserved. FAU - Borisova, T AU - Borisova T AD - The Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9 Leontovicha Street, Kiev 01601, Ukraine. Electronic address: tborisov@biochem.kiev.ua. FAU - Pozdnyakova, N AU - Pozdnyakova N AD - The Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9 Leontovicha Street, Kiev 01601, Ukraine. FAU - Shaitanova, E AU - Shaitanova E AD - The Department of Fine Organic Synthesis, Institute of Bioorganic Chemistry and Petrochemistry, NAS of Ukraine, Murmanskaya Str. 1, Kiev 02094, Ukraine. FAU - Gerus, I AU - Gerus I AD - The Department of Fine Organic Synthesis, Institute of Bioorganic Chemistry and Petrochemistry, NAS of Ukraine, Murmanskaya Str. 1, Kiev 02094, Ukraine. FAU - Dudarenko, M AU - Dudarenko M AD - The Department of Neurochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9 Leontovicha Street, Kiev 01601, Ukraine. FAU - Mironets, R AU - Mironets R AD - The Department of Fine Organic Synthesis, Institute of Bioorganic Chemistry and Petrochemistry, NAS of Ukraine, Murmanskaya Str. 1, Kiev 02094, Ukraine. FAU - Haufe, G AU - Haufe G AD - Organic Chemistry Institute, Corrensstr. 40, D-48149 Munster, Germany. FAU - Kukhar, V AU - Kukhar V AD - The Department of Fine Organic Synthesis, Institute of Bioorganic Chemistry and Petrochemistry, NAS of Ukraine, Murmanskaya Str. 1, Kiev 02094, Ukraine. LA - eng PT - Journal Article DEP - 20150619 PL - England TA - Bioorg Med Chem JT - Bioorganic & medicinal chemistry JID - 9413298 RN - 0 (GABA Plasma Membrane Transport Proteins) RN - 10028-17-8 (Tritium) RN - 284SYP0193 (Fluorine) RN - 55JG375S6M (Pregabalin) RN - 56-12-2 (gamma-Aminobutyric Acid) SB - IM MH - Animals MH - Brain/*metabolism MH - Fluorine/*chemistry MH - GABA Plasma Membrane Transport Proteins/chemistry/metabolism MH - Male MH - Pregabalin/*chemistry/metabolism MH - Rats MH - Rats, Wistar MH - Synaptosomes/metabolism MH - Tritium/chemistry MH - gamma-Aminobutyric Acid/*analogs & derivatives/chemical synthesis/metabolism OTO - NOTNLM OT - Fluorinated analogs of gamma-aminobutyric acid (beta-polyfluoroalkyl-GABAs) OT - Lyrica OT - Pregabalin OT - Rat brain nerve terminals OT - [(3)H]GABA uptake EDAT- 2015/07/04 06:00 MHDA- 2016/05/18 06:00 CRDT- 2015/07/04 06:00 PHST- 2015/04/08 00:00 [received] PHST- 2015/06/08 00:00 [revised] PHST- 2015/06/11 00:00 [accepted] PHST- 2015/07/04 06:00 [entrez] PHST- 2015/07/04 06:00 [pubmed] PHST- 2016/05/18 06:00 [medline] AID - S0968-0896(15)00532-5 [pii] AID - 10.1016/j.bmc.2015.06.038 [doi] PST - ppublish SO - Bioorg Med Chem. 2015 Aug 1;23(15):4316-4323. doi: 10.1016/j.bmc.2015.06.038. Epub 2015 Jun 19.