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Structure-Based Design of a Chemical Probe Set for the 5-HT Serotonin Receptor

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Journal J Med Chem
Specialty Chemistry
Date 2022 Feb 23
PMID 35195401
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Abstract

The 5-HT receptor (5-HTR), for which no selective agonists and a few antagonists exist, remains the least understood serotonin receptor. A single commercial antagonist, SB-699551, has been widely used to investigate the 5-HTR function in neurological disorders, including pain, but this molecule has substantial liabilities as a chemical probe. Accordingly, we sought to develop an internally controlled probe set. Docking over 6 million molecules against a 5-HTR homology model identified 5 mid-μM ligands, one of which was optimized to , a 42 nM arrestin-biased partial agonist at the 5-HTR with a more restricted off-target profile and decreased assay liabilities versus SB-699551. Site-directed mutagenesis supported the docked pose of . Surprisingly, analogs of that lost the 5-HTR activity revealed that 5-HTR engagement is nonessential for alleviating pain, contrary to studies with less-selective ligands. and analogs constitute a selective probe set with which to study the function of the 5-HTR.

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References
1.
Wercberger R, Braz J, Weinrich J, Basbaum A . Pain and itch processing by subpopulations of molecularly diverse spinal and trigeminal projection neurons. Proc Natl Acad Sci U S A. 2021; 118(28). PMC: 8285968. DOI: 10.1073/pnas.2105732118. View

2.
Mysinger M, Shoichet B . Rapid context-dependent ligand desolvation in molecular docking. J Chem Inf Model. 2010; 50(9):1561-73. DOI: 10.1021/ci100214a. View

3.
McCorvy J, Roth B . Structure and function of serotonin G protein-coupled receptors. Pharmacol Ther. 2015; 150:129-42. PMC: 4414735. DOI: 10.1016/j.pharmthera.2015.01.009. View

4.
Dogrul A, Seyrek M, Akgul E, Cayci T, Kahraman S, Bolay H . Systemic paracetamol-induced analgesic and antihyperalgesic effects through activation of descending serotonergic pathways involving spinal 5-HT₇ receptors. Eur J Pharmacol. 2011; 677(1-3):93-101. DOI: 10.1016/j.ejphar.2011.12.016. View

5.
Hauser A, Attwood M, Rask-Andersen M, Schioth H, Gloriam D . Trends in GPCR drug discovery: new agents, targets and indications. Nat Rev Drug Discov. 2017; 16(12):829-842. PMC: 6882681. DOI: 10.1038/nrd.2017.178. View