Pharmacologic analysis of non-synonymous coding 5-HT2A SNPs reveals alterations psychedelic drug potencies and efficacies
Schmitz, G.; DiBerto, J.; Jain, M.; Roth, B. L.
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Serotonin (5-Hydroxytryptamine; 5-HT) 2A receptor (5-HT2AR) signaling is essential for the actions of classical psychedelic drugs. In this study, we examined whether random sequence variations in the gene (single nucleotide polymorphisms, SNPs) encoding the 5-HT2AR affect the signaling of four commonly used psychedelic drugs. We examined the in vitro pharmacology of seven non-synonymous SNPs, which give rise to S12N, T25N, D48N, I197V, A230T, A447V, and H452Y variant 5-HT2A serotonin receptors. We found that these non-synonymous SNPs exert statistically significant, although modest, effects on the efficacy and potency of four therapeutically relevant hallucinogens. Significantly, the in vitro pharmacological effects of the SNPs drug actions at 5-HT2AR are drug specific. Table of Contents/Abstract Graphic O_FIG O_LINKSMALLFIG WIDTH=188 HEIGHT=200 SRC="FIGDIR/small/472000v1_ufig1.gif" ALT="Figure 1"> View larger version (44K): org.highwire.dtl.DTLVardef@1c1f430org.highwire.dtl.DTLVardef@86b7b6org.highwire.dtl.DTLVardef@871633org.highwire.dtl.DTLVardef@c2ae24_HPS_FORMAT_FIGEXP M_FIG C_FIG
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