Abstract
Recent research raises the question whether the serotonin 2B receptor (5-HT2B) plays a role in the pathogenesis of migraine. Clinical studies revealed that the 5-HT2B/2C agonist meta-Chlorophenylpiperazine (mCPP) induces migraine-like headache more likely in migraineurs than in subjects without a history of migraine. We therefore developed an animal model for chronic migraine, where we are able to induce a neurogenic inflammation in the dura mater of hypoxic mice with 5-HT2B agonists. This inflammation can be blocked by specific 5-HT2B inhibitors. Until now little is known about the 5-HT2B receptor: It is expressed on endothelial cells of blood vessels, but it may also be present on other cell types. Like most of the other serotonin receptors it is a G protein-coupled receptor, but the native signal transduction pathway after receptor activation is not clear yet.
Highlights
Recent research raises the question whether the serotonin 2B receptor (5-HT2B) plays a role in the pathogenesis of migraine
Investigation of 5-HT2B receptor pathways with relevance to a mouse migraine model
Clinical studies revealed that the 5-HT2B/2C agonist meta-Chlorophenylpiperazine induces migraine-like headache more likely in migraineurs than in subjects without a history of migraine
Summary
Recent research raises the question whether the serotonin 2B receptor (5-HT2B) plays a role in the pathogenesis of migraine. Investigation of 5-HT2B receptor pathways with relevance to a mouse migraine model From 4th European Headache and Migraine Trust International Congress: EHMTIC 2014 Copenhagen, Denmark.
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