Serotonin 5-HT2C Receptor Signaling Analysis Reveals Psychedelic Biased Agonism. (PubMed, ACS Chem Neurosci)
Despite earlier evidence of 5-HT2C G protein coupling promiscuity, the full signaling landscape remains incompletely characterized, which may help explain the limited efficacy and potential cancer risks associated with lorcaserin...Profiling of both 5-HT2C-selective and psychedelic ligands reveals diverse signaling profiles, with serotonergic psychedelics such as LSD and psilocin exhibiting a striking Gq/11 bias due to minimal secondary G protein activation. Altogether, this work provides a foundation for incorporating a broader view of 5-HT2C signaling modalities into future investigations of 5-HT2C drug development efforts.