期刊
SCIENCE
卷 375, 期 6579, 页码 403-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.abl8615
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This study provides structural insights into the binding of drugs to 5-HT2AR and offers a foundation for the design of safe and effective nonhallucinogenic psychedelic analogs for the treatment of neuropsychiatric diseases.
Drugs that target the human serotonin 2A receptor (5-HT2AR) are used to treat neuropsychiatric diseases; however, many have hallucinogenic effects, hampering their use. Here, we present structures of 5-HT2AR complexed with the psychedelic drugs psilocin (the active metabolite of psilocybin) and D-lysergic acid diethylamide (LSD), as well as the endogenous neurotransmitter serotonin and the nonhallucinogenic psychedelic analog lisuride. Serotonin and psilocin display a second binding mode in addition to the canonical mode, which enabled the design of the psychedelic IHCH-7113 (a substructure of antipsychotic lumateperone) and several 5-HT2AR beta-arrestin-biased agonists that displayed antidepressant-like activity in mice but without hallucinogenic effects. The 5-HT2AR complex structures presented herein and the resulting insights provide a solid foundation for the structure-based design of safe and effective nonhallucinogenic psychedelic analogs with therapeutic effects.
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