Functional Selectivity and Antidepressant Activity of Serotonin 1A Receptor Ligands

Abstract

Serotonin (5-HT) is a monoamine neurotransmitter that plays an important role in physiological functions. 5-HT has been implicated in sleep, feeding, sexual behavior, temperature regulation, pain, and cognition as well as in pathological states including disorders connected to mood, anxiety, psychosis and pain. 5-HT1A receptors have for a long time been considered as an interesting target for the action of antidepressant drugs. It was postulated that postsynaptic 5-HT1A agonists could form a new class of antidepressant drugs, and mixed 5-HT1A receptor ligands/serotonin transporter (SERT) inhibitors seem to possess an interesting pharmacological profile. It should, however, be noted that 5-HT1A receptors can activate several different biochemical pathways and signal through both G protein-dependent and G protein-independent pathways. The variables that affect the multiplicity of 5-HT1A receptor signaling pathways would thus result from the summation of effects specific to the host cell milieu. Moreover, receptor trafficking appears different at pre- and postsynaptic sites. It should also be noted that the 5-HT1A receptor cooperates with other signal transduction systems (like the 5-HT1B or 5-HT2A/2B/2C receptors, the GABAergic and the glutaminergic systems), which also contribute to its antidepressant and/or anxiolytic activity. Thus identifying brain specific molecular targets for 5-HT1A receptor ligands may result in a better targeting, raising a hope for more effective medicines for various pathologies.

DOI: 10.3390/ijms160818474

Extracted Key Phrases

7 Figures and Tables

05010020162017
Citations per Year

Citation Velocity: 24

Averaging 24 citations per year over the last 2 years.

Learn more about how we calculate this metric in our FAQ.

Cite this paper

@inproceedings{Chilmonczyk2015FunctionalSA, title={Functional Selectivity and Antidepressant Activity of Serotonin 1A Receptor Ligands}, author={Zdzislaw Chilmonczyk and Andrzej J. Bojarski and Andrzej Pilc and Ingebrigt Sylte and Kenji Hashimoto}, booktitle={International journal of molecular sciences}, year={2015} }