title: 5-HT(1B) receptors play a prominent role in the proliferation of T-lymphocytes.
abstract: Serotonin plays a role in T cell activation, but there is no clear consensus of which of the 14 serotonergic receptors control this activations pathway. We have used a broad range of serotonergic receptor antagonists to define the functional involvement of these receptors governing the proliferation of primary T cells as well as in T cell lines. Our data shows that antagonism of the 5-HT(1B) receptor inhibits the proliferation of both human and murine primary helper T cells and of human helper T cell lines. As a whole, our data suggest that other serotonergic receptors may contribute to the proliferative signals, but the 5-HT(1B) receptor plays the most dominant role.
authors.affiliation: Department of Biochemistry and Molecular Biology at Drexel University College of Medicine, Philadelphia, PA, USA.
authors.forename: Jun
authors.initials: J
authors.lastname: Yin
authors.forename: Ross H
authors.initials: RH
authors.lastname: Albert
authors.forename: Anna P
authors.initials: AP
authors.lastname: Tretiakova
authors.forename: Bradford A
authors.initials: BA
authors.lastname: Jameson
mesh_terms: D000818:Animals; D017209:Apoptosis / Q000187:drug effects / Q000276:immunology; D015496:CD4-Positive T-Lymphocytes / Q000166:cytology* / Q000378:metabolism*; D002455:Cell Division / Q000276:immunology; D002522:Chlorocebus aethiops; D005434:Flow Cytometry; D015870:Gene Expression / Q000276:immunology; D006801:Humans; D019169:Jurkat Cells; D008213:Lymphocyte Activation / Q000502:physiology; D009115:Muridae; D044302:Receptor, Serotonin, 5-HT1B / Q000235:genetics / Q000378:metabolism*; D012701:Serotonin / Q000378:metabolism; D058829:Serotonin 5-HT1 Receptor Antagonists; D012702:Serotonin Antagonists / Q000494:pharmacology
chemical_list: D044302:Receptor, Serotonin, 5-HT1B; D058829:Serotonin 5-HT1 Receptor Antagonists; D012702:Serotonin Antagonists; D012701:Serotonin