Localization of 5-HT(6) receptors at the plasma membrane of neuronal cilia in the rat brain.
5-HT(6) receptor-like immunoreactivity has been previously found in association with both neuronal dendrites and cilia in the striatum, nucleus accumbens, olfactory tubercle and islands of Calleja of the rat brain. Using immunogold pre-embedding immunocytochemical techniques to investigate the subcellular localization of 5-HT(6) receptor-like immunoreactivity in cilia, we showed that immunogold particles were associated with their plasma membrane, and not with microtubules. This membrane localization is consistent with a possible physiological role, which is still unknown, of these receptors.
Laboratoire de Neurobiologie des Signaux Intercellulaires, Institut des Neurosciences, Université Pierre et Marie Curie, CNRS UMR 7624, 7 Quai Saint-Bernard, 75005, Paris, France.
I
I
Brailov
M
M
Bancila
M J
MJ
Brisorgueil
M C
MC
Miquel
M
M
Hamon
D
D
Vergé
D000818:Animals; D001921:Brain / Q000166:cytology / Q000378:metabolism / Q000648:ultrastructure; D002462:Cell Membrane / Q000378:metabolism* / Q000648:ultrastructure; D002923:Cilia / Q000378:metabolism* / Q000648:ultrastructure; D005455:Fluorescent Antibody Technique; D007150:Immunohistochemistry; D020670:Islands of Calleja / Q000378:metabolism* / Q000648:ultrastructure; D008297:Male; D008870:Microtubules / Q000648:ultrastructure; D009474:Neurons / Q000166:cytology / Q000378:metabolism* / Q000648:ultrastructure; D009928:Organ Specificity; D051381:Rats; D017208:Rats, Wistar; D011985:Receptors, Serotonin / Q000378:metabolism*
D011985:Receptors, Serotonin; C097216:serotonin 6 receptor