ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2010
Endogenous signaling through alpha7-containing nicotinic receptors promotes maturation and integration of adult-born neurons in the hippocampus.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.
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Who cites it
79 citing papers in PubMed.
- Restoring Septohippocampal Cholinergic Signaling Rescues Surgery-Induced Neurogenesis and Memory Deficits in Aged Mice.Aging cell · 2026Article
- The Neurogenic Niche: Interactions Among Vessels, Glia, and Neural Stem Cells.Stem cells international · 2026Review
- Adult hippocampal neurogenesis: New avenues for treatment of brain disorders.Stem cell reports · 2025Review
- Nicotine Ameliorates α-Synuclein Preformed Fibril-Induced Behavioral Deficits and Pathological Features in Mice.Applied biochemistry and biotechnology · 2025Article
- Dampened α7 nAChR activity contributes to audiogenic seizures and hyperactivity in a mouse model of Fragile X Syndrome.bioRxiv : the preprint server for biology · 2024Article
- Adult neurogenesis in the ventral hippocampus decreased among animal models of neurodevelopmental disorders.Frontiers in neural circuits · 2024Article
- Nicotinic acetylcholine receptors and learning and memory deficits in Neuroinflammatory diseases.Frontiers in neuroscience · 2023Review
- Review
- Genetic deletion of α7 nAChRs reduces hippocampal granule and pyramidal cell number in both sexes but impairs pattern separation in males only.Frontiers in neuroscience · 2023Article
- CaInternational journal of molecular sciences · 2022Review
- Unique effects of nicotine across the lifespan.Pharmacology, biochemistry, and behavior · 2022Review
- Deepening the understanding of CNVs on chromosome 15q11-13 by using hiPSCs: An overview.Frontiers in cell and developmental biology · 2022Review
- Axonal α7* nicotinic acetylcholine receptors modulate glutamatergic signaling and synaptic vesicle organization in ventral hippocampal projections.Frontiers in neural circuits · 2022Article
- Differential signalling induced by α7 nicotinic acetylcholine receptors in hippocampal dentate gyrus in vitro and in vivo.The Journal of physiology · 2021Article
- Homomeric and Heteromeric α7 Nicotinic Acetylcholine Receptors in Health and Some Central Nervous System Diseases.Membranes · 2021Review
- Article
- Loss of α7 nicotinic acetylcholine receptors in GABAergic neurons causes sex-dependent decreases in radial glia-like cell quantity and impairments in cognitive and social behavior.Brain structure & function · 2021Article
- Systematic Review of Nicotine Exposure's Effects on Neural Stem and Progenitor Cells.Brain sciences · 2021Review
- Multiple Roles for Cholinergic Signaling from the Perspective of Stem Cell Function.International journal of molecular sciences · 2021Review
- Regulation of Blood Flow in the Cerebral Posterior Circulation by Parasympathetic Nerve Fibers: Physiological Background and Possible Clinical Implications in Patients With Vertebrobasilar Stroke.Frontiers in neurology · 2021Review
19 more citing papers are in PubMed but not listed here.
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4 authors.
Funding
Abstract
Neurogenesis in the dentate gyrus occurs throughout adult mammalian life and is essential for proper hippocampal function. Early in their development, adult-born neurons express homomeric alpha7-containing nicotinic acetylcholine receptors (alpha7-nAChRs) and receive direct cholinergic innervation. We show here that functional alpha7-nAChRs are necessary for normal survival, maturation, and integration of adult-born neurons in the dentate gyrus. Stereotaxic retroviral injection into the dentate gyrus of wild-type and alpha7-knock-out (alpha7KO) male and female mice was used to label and birthdate adult-born neurons for morphological and electrophysiological measures; BrdU (5-bromo-2-deoxyuridine) injections were used to quantify cell survival. In alpha7KO mice, we find that adult-born neurons develop with truncated, less complex dendritic arbors and display GABAergic postsynaptic currents with immature kinetics. The neurons also have a prolonged period of GABAergic depolarization characteristic of an immature state. In this condition, they receive fewer spontaneous synaptic currents and are more prone to die during the critical period when adult-born neurons are normally integrated into behaviorally relevant networks. Even those adult-born neurons that survive the critical period retain long-term dendritic abnormalities in alpha7KO mice. Interestingly, local infection with retroviral constructs to knockdown alpha7-mRNA mimics the alpha7KO phenotype, demonstrating that the relevant alpha7-nAChR signaling is cell autonomous. The results indicate a profound role for alpha7-nAChRs in adult neurogenesis and predict that alpha7-nAChR loss will cause progressive impairment in hippocampal circuitry and function over time as fewer neurons are added to the dentate gyrus and those that are added integrate less well.
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