http://www.cnr.it/ontology/cnr/individuo/prodotto/ID38147
Heterogeneity and complexity of native brain nicotinic receptors. (Articolo in rivista)
- Type
- Label
- Heterogeneity and complexity of native brain nicotinic receptors. (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.bcp.2007.05.023 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Gotti C(1); Moretti M (1); Gaimarri A (1); Zanardi A(2); Clementi F(1); and Zoli M(2) (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1. Univ Milan, Dept Med Pharmacol, Inst Neurosci, Cellular & Mol Pharmacol Ctr,CNR, I-20129 Milan, Italy
2. Univ Modena & Reggio Emilia, Dept Biomed Sci, Physiol Sect, Modena, Italy (literal)
- Titolo
- Heterogeneity and complexity of native brain nicotinic receptors. (literal)
- Abstract
- Neuronal cholinergic nicotinic receptors (nAChRs) are a heterogeneous class of cationic channels that are widely distributed in the nervous system that have specific functional and pharmacological properties. They consist of homologous subunits encoded by a large multigene family, and their opening is physiologically controlled by the acetylcholine neurotransmitter or exogenous ligands such as nicotine. Their biophysical and pharmacological properties depend on their subunit composition, which is therefore central to understanding receptor function in the nervous system and discovering new subtype-selective drugs.
We will review rodent brain subtypes by discussing their subunit composition, pharmacology and localisation and, when possible, comparing them with the same subtypes present in the brain of other mammalian species or chick.
In particular, we will focus on the nAChRs present in the visual pathway (retina, superior colliculus and nucleus geniculatus lateralis), in which neurons express most, if not all, nAChR subunits. In addition to the major alpha 4 beta 2 and alpha 7 nAChR subtypes, the visual pathway selectively expresses subtypes with a complex subunit composition. By means of ligand binding and immunoprecipitation and immunopurification experiments on tissues obtained from control and lesioned rats, and wild-type and nAChR subunit knockout mice, we have qualitatively and quantitatively identified, and pharmacologically characterised, the multiple complex native subtypes containing up to four different subunits (literal)
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