PMID- 10528135 OWN - NLM STAT- MEDLINE DCOM- 19991209 LR - 20190624 IS - 0014-2999 (Print) IS - 0014-2999 (Linking) VI - 381 IP - 1 DP - 1999 Sep 17 TI - Inhibition of plasma membrane monoamine transporters by beta-ketoamphetamines. PG - 63-9 AB - Methcathinone and methylone, the beta-ketone analogues of methamphetamine and 3,4-methylenedioxymethamphetamine (MDMA), respectively, were tested for neurotransmitter uptake inhibition in vitro. The beta-ketones were threefold less potent than the nonketo drugs at inhibiting platelet serotonin accumulation, with IC(50)'s of 34.6+/-4.8 microM and 5.8+/-0.7 microM, respectively. Methcathinone and methylone were similar in potency to methamphetamine and MDMA at catecholamine transporters individually expressed in transfected glial cells. For dopamine uptake, IC(50)'s were 0.36+/-0.06 microM and 0.82+/-0.17 microM, respectively; for noradrenaline uptake, IC(50) values were 0.51+/-0.10 microM and 1. 2+/-0.1 microM, respectively. In chromaffin granules, IC(50)'s for serotonin accumulation were 112+/-8.0 microM for methcathinone and 166+/-12 microM for methylone, 10-fold higher than the respective values for methamphetamine and MDMA. Our results indicate that methcathinone and methylone potently inhibit plasma membrane catecholamine transporters but only weakly inhibit the vesicle transporter. FAU - Cozzi, N V AU - Cozzi NV AD - Department of Pharmacology, East Carolina University School of Medicine, Greenville, NC 27858, USA. ncozzi@brody.med.ecu.edu FAU - Sievert, M K AU - Sievert MK FAU - Shulgin, A T AU - Shulgin AT FAU - Jacob, P 3rd AU - Jacob P 3rd FAU - Ruoho, A E AU - Ruoho AE LA - eng GR - NS33650/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - Netherlands TA - Eur J Pharmacol JT - European journal of pharmacology JID - 1254354 RN - 0 (Dopamine Uptake Inhibitors) RN - 0 (Membrane Glycoproteins) RN - 0 (Membrane Transport Proteins) RN - 0 (Neuropeptides) RN - 0 (Propiophenones) RN - 0 (Vesicular Biogenic Amine Transport Proteins) RN - 10028-17-8 (Tritium) RN - 333DO1RDJY (Serotonin) RN - 386QA522QG (monomethylpropion) RN - 44RAL3456C (Methamphetamine) RN - 4764-17-4 (3,4-Methylenedioxyamphetamine) RN - L4I4B1R01F (methylone) RN - VTD58H1Z2X (Dopamine) RN - X4W3ENH1CV (Norepinephrine) SB - IM MH - 3,4-Methylenedioxyamphetamine/pharmacology MH - Animals MH - Cattle MH - Cell Membrane/*drug effects/metabolism MH - Chromaffin Cells/drug effects/metabolism MH - Dopamine/pharmacokinetics MH - Dopamine Uptake Inhibitors/*pharmacology MH - Humans MH - Membrane Glycoproteins/*drug effects MH - *Membrane Transport Proteins MH - Methamphetamine/analogs & derivatives/*pharmacology MH - *Neuropeptides MH - Norepinephrine/pharmacokinetics MH - Propiophenones/pharmacology MH - Serotonin/pharmacokinetics MH - Tritium MH - Tumor Cells, Cultured MH - Vesicular Biogenic Amine Transport Proteins EDAT- 1999/10/21 09:00 MHDA- 2001/03/28 10:01 CRDT- 1999/10/21 09:00 PHST- 1999/10/21 09:00 [pubmed] PHST- 2001/03/28 10:01 [medline] PHST- 1999/10/21 09:00 [entrez] AID - S0014-2999(99)00538-5 [pii] AID - 10.1016/s0014-2999(99)00538-5 [doi] PST - ppublish SO - Eur J Pharmacol. 1999 Sep 17;381(1):63-9. doi: 10.1016/s0014-2999(99)00538-5.