The serotonin 1A (5-HT1A) receptor as a pharmacological target in depression

Clinical depression is a common, debilitating and heterogenous disorder. Existing treatments for depression are inadequate for a significant minority of patients and new approaches are urgently needed. A wealth of evidence implicates the serotonin 1A (5-HT1A) receptor in the pathophysiology of depre...

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Principais autores: Smith, ALW, Harmer, CJ, Cowen, PJ, Murphy, SE
Formato: Journal article
Idioma:English
Publicado em: Springer Nature 2023
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author Smith, ALW
Harmer, CJ
Cowen, PJ
Murphy, SE
author_facet Smith, ALW
Harmer, CJ
Cowen, PJ
Murphy, SE
author_sort Smith, ALW
collection OXFORD
description Clinical depression is a common, debilitating and heterogenous disorder. Existing treatments for depression are inadequate for a significant minority of patients and new approaches are urgently needed. A wealth of evidence implicates the serotonin 1A (5-HT1A) receptor in the pathophysiology of depression. Stimulation of the 5-HT1A receptor is an existing therapeutic target for treating depression and anxiety, using drugs such as buspirone and tandospirone. However, activation of 5-HT1A raphe autoreceptors has also been suggested to be responsible for the delay in the therapeutic action of conventional antidepressants such as selective serotonin reuptake inhibitors (SSRIs). This narrative review provides a brief overview of the 5-HT1A receptor, the evidence implicating it in depression and in the effects of conventional antidepressant treatment. We highlight that pre- and post-synaptic 5-HT1A receptors may have divergent roles in the pathophysiology and treatment of depression. To date, developing this understanding to progress therapeutic discovery has been limited, partly due to a paucity of specific pharmacological probes suitable for use in humans. The development of 5-HT1A ‘biased agonism’, using compounds such as NLX-101, offers the opportunity to further elucidate the roles of pre- and post-synaptic 5-HT1A receptors. We describe how experimental medicine approaches can be helpful in profiling the effects of 5-HT1A receptor modulation on the different clinical domains of depression, and outline some potential neurocognitive models that could be used to test the effects of 5-HT1A biased agonists.
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spelling oxford-uuid:f1e8e85c-c884-4a3e-9d26-d076b85c63022024-07-02T10:19:48ZThe serotonin 1A (5-HT1A) receptor as a pharmacological target in depressionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f1e8e85c-c884-4a3e-9d26-d076b85c6302EnglishSymplectic ElementsSpringer Nature2023Smith, ALWHarmer, CJCowen, PJMurphy, SEClinical depression is a common, debilitating and heterogenous disorder. Existing treatments for depression are inadequate for a significant minority of patients and new approaches are urgently needed. A wealth of evidence implicates the serotonin 1A (5-HT1A) receptor in the pathophysiology of depression. Stimulation of the 5-HT1A receptor is an existing therapeutic target for treating depression and anxiety, using drugs such as buspirone and tandospirone. However, activation of 5-HT1A raphe autoreceptors has also been suggested to be responsible for the delay in the therapeutic action of conventional antidepressants such as selective serotonin reuptake inhibitors (SSRIs). This narrative review provides a brief overview of the 5-HT1A receptor, the evidence implicating it in depression and in the effects of conventional antidepressant treatment. We highlight that pre- and post-synaptic 5-HT1A receptors may have divergent roles in the pathophysiology and treatment of depression. To date, developing this understanding to progress therapeutic discovery has been limited, partly due to a paucity of specific pharmacological probes suitable for use in humans. The development of 5-HT1A ‘biased agonism’, using compounds such as NLX-101, offers the opportunity to further elucidate the roles of pre- and post-synaptic 5-HT1A receptors. We describe how experimental medicine approaches can be helpful in profiling the effects of 5-HT1A receptor modulation on the different clinical domains of depression, and outline some potential neurocognitive models that could be used to test the effects of 5-HT1A biased agonists.
spellingShingle Smith, ALW
Harmer, CJ
Cowen, PJ
Murphy, SE
The serotonin 1A (5-HT1A) receptor as a pharmacological target in depression
title The serotonin 1A (5-HT1A) receptor as a pharmacological target in depression
title_full The serotonin 1A (5-HT1A) receptor as a pharmacological target in depression
title_fullStr The serotonin 1A (5-HT1A) receptor as a pharmacological target in depression
title_full_unstemmed The serotonin 1A (5-HT1A) receptor as a pharmacological target in depression
title_short The serotonin 1A (5-HT1A) receptor as a pharmacological target in depression
title_sort serotonin 1a 5 ht1a receptor as a pharmacological target in depression
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