title: Astroglial type-1 cannabinoid receptor (CB1): A new player in the tripartite synapse.
abstract: The endocannabinoid system is an important regulator of physiological functions. In the brain, this control is mainly exerted through the type-1-cannabinoid (CB1) receptors. CB1 receptors are abundant at neuron terminals where their stimulation inhibits neurotransmitter release. However, CB1 receptors are also expressed in astrocytes and recent studies showed that astroglial cannabinoid signaling is a key element of the tripartite synapse. In this review we discuss the different mechanisms by which astroglial CB1 receptors control synaptic transmission and plasticity. The recent involvement of astroglial CB1 receptors in the effects of cannabinoids on memory highlights their key roles in cognitive processes and further indicates that astrocytes are central active elements of high-order brain functions.
authors.affiliation: INSERM U862 NeuroCentre Magendie, INSERM, 146 rue Leo Saignat, 33077 Bordeaux, France; University of Bordeaux, 146 rue Leo Saignat, 33077 Bordeaux, France; Dept. of Clinical and Molecular Biomedicine, Section of Pharmacology and Biochemistry, University of Catania, Catania, Italy.
authors.forename: J F
authors.initials: JF
authors.lastname: Oliveira da Cruz
authors.affiliation: INSERM U862 NeuroCentre Magendie, INSERM, 146 rue Leo Saignat, 33077 Bordeaux, France; University of Bordeaux, 146 rue Leo Saignat, 33077 Bordeaux, France.
authors.forename: L M
authors.initials: LM
authors.lastname: Robin
authors.affiliation: Dept. of Clinical and Molecular Biomedicine, Section of Pharmacology and Biochemistry, University of Catania, Catania, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Drago
authors.affiliation: INSERM U862 NeuroCentre Magendie, INSERM, 146 rue Leo Saignat, 33077 Bordeaux, France; University of Bordeaux, 146 rue Leo Saignat, 33077 Bordeaux, France. Electronic address: giovanni.marsicano@inserm.fr.
authors.forename: G
authors.initials: G
authors.lastname: Marsicano
authors.affiliation: INSERM U862 NeuroCentre Magendie, INSERM, 146 rue Leo Saignat, 33077 Bordeaux, France; University of Bordeaux, 146 rue Leo Saignat, 33077 Bordeaux, France. Electronic address: m.metna@aelisfarma.com.
authors.forename: M
authors.initials: M
authors.lastname: Metna-Laurent
mesh_terms: D000818:Animals; D001253:Astrocytes / Q000378:metabolism*; D001921:Brain / Q000378:metabolism; D006801:Humans; D008570:Memory, Short-Term / Q000502:physiology; D009473:Neuronal Plasticity / Q000502:physiology; D009474:Neurons / Q000378:metabolism*; D043884:Receptor, Cannabinoid, CB1 / Q000378:metabolism*; D013569:Synapses / Q000378:metabolism*; D009435:Synaptic Transmission / Q000502:physiology*
chemical_list: D043884:Receptor, Cannabinoid, CB1
keywords: astroglial cells; cannabinoid receptors; synaptic plasticity; tripartite synapse; working memory