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Serotonin receptor signaling insights may pave way for next-gen mental health drugs

In a discovery that could guide the development of next-generation antidepressants and antipsychotic medications, researchers at the Icahn School of Medicine at Mount Sinai have developed new insights into how a critical brain receptor works at the molecular level and why that matters for mental health treatments.

The study, published in the online issue of Science Advances, focuses on the 5-HT1A , a major player in regulating mood and a common target of both traditional antidepressants and newer therapies such as psychedelics. The paper is titled “Structural determinants of G protein subtype selectivity at the serotonin receptor 5-HT1A.”

Despite its clinical importance, this receptor has remained poorly understood, with many of its molecular and pharmacological properties largely understudied—until now.

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