PT - JOURNAL ARTICLE AU - Su, Tsung-Ping AU - Hayashi, Teruo AU - Vaupel, D. Bruce TI - When the Endogenous Hallucinogenic Trace Amine <em>N,N</em>-Dimethyltryptamine Meets the Sigma-1 Receptor AID - 10.1126/scisignal.261pe12 DP - 2009 Mar 10 TA - Science Signaling PG - pe12--pe12 VI - 2 IP - 61 4099 - http://stke.sciencemag.org/content/2/61/pe12.short 4100 - http://stke.sciencemag.org/content/2/61/pe12.full SO - Sci. Signal.2009 Mar 10; 2 AB - N,N-dimethyltryptamine (DMT) is a hallucinogen found endogenously in human brain that is commonly recognized to target the 5-hydroxytryptamine 2A receptor or the trace amine–associated receptor to exert its psychedelic effect. DMT has been recently shown to bind sigma-1 receptors, which are ligand-regulated molecular chaperones whose function includes inhibiting various voltage-sensitive ion channels. Thus, it is possible that the psychedelic action of DMT might be mediated in part through sigma-1 receptors. Here, we present a hypothetical signaling scheme that might be triggered by the binding of DMT to sigma-1 receptors.