Title : Cannabinoid Receptor 1 Is Required for Neurodevelopment of Striosome-Dendron Bouquets.

Pub. Date : 2022 Mar-Apr

PMID : 35361667






5 Functional Relationships(s)
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1 We examined postnatal CB1R expression in the major striatonigral circuit from striosomes of the striatum to the dopamine-containing neurons of the substantia nigra. Dopamine cannabinoid receptor 1 (brain) Mus musculus
2 Our finding that CB1R plays a major role in postnatal wiring of the striatonigral dopamine-control system, with lasting consequences at least in mice, points to a crucial need to determine whether lactating mothers" use of CB1R agonists (e.g., in marijuana) or antagonists (e.g., type 2 diabetes therapies) can disrupt brain development in nursing offspring.Significance StatementWe report the surprising finding that cannabinoid receptor 1 (CB1R), which mediates the psychoactive effects of marijuana, is required for normal postnatal development of midbrain dopamine-containing neurons and their striatal inputs in mice. Dopamine cannabinoid receptor 1 (brain) Mus musculus
3 Our finding that CB1R plays a major role in postnatal wiring of the striatonigral dopamine-control system, with lasting consequences at least in mice, points to a crucial need to determine whether lactating mothers" use of CB1R agonists (e.g., in marijuana) or antagonists (e.g., type 2 diabetes therapies) can disrupt brain development in nursing offspring.Significance StatementWe report the surprising finding that cannabinoid receptor 1 (CB1R), which mediates the psychoactive effects of marijuana, is required for normal postnatal development of midbrain dopamine-containing neurons and their striatal inputs in mice. Dopamine cannabinoid receptor 1 (brain) Mus musculus
4 Mice with a mutation in the gene that encodes CB1R show abnormal striatonigral connections and displaced dopamine neurons indicating a postnatal function for CB1R in brain development. Dopamine cannabinoid receptor 1 (brain) Mus musculus
5 Mice with a mutation in the gene that encodes CB1R show abnormal striatonigral connections and displaced dopamine neurons indicating a postnatal function for CB1R in brain development. Dopamine cannabinoid receptor 1 (brain) Mus musculus