ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2011
GABAB receptor modulation of voltage-sensitive calcium channels in spines and dendrites.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.
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Who cites it
52 citing papers in PubMed, 95 citations in OpenAlex.
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- Adaptive control of synaptic plasticity integrates micro- and macroscopic network function.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023Review
- Assessing Local and Branch-specific Activity in Dendrites.Neuroscience · 2022Article
- Mechanisms and Regulation of Neuronal GABACurrent topics in behavioral neurosciences · 2022Review
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- Mediodorsal and Ventromedial Thalamus Engage Distinct L1 Circuits in the Prefrontal Cortex.Neuron · 2021Article
- Sustained Baclofen-Induced Activation of GABAFrontiers in molecular neuroscience · 2021Article
- The Aging GABAergic System and Its Nutritional Support.Journal of nutrition and metabolism · 2021Review
- NPYThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2019Article
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- Diversity of structure and function of GABAProceedings of the Japan Academy. Series B, Physical and biological sciences · 2018Review
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- A Visible-Light-Sensitive Caged Serotonin.ACS chemical neuroscience · 2017Article
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2 authors at 1 institution in 1 country.
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Abstract
Although primarily studied at the cell body, GABA(B) receptors (GABA(B)Rs) are abundant at spines and dendrites of cortical pyramidal neurons, where they are positioned to influence both synaptic and dendritic function. Here, we examine how GABA(B)Rs modulate calcium (Ca) signals evoked by action potentials (APs) in spines and dendrites of layer 2/3 pyramidal neurons in mouse prefrontal cortex. We first use two-photon microscopy to show that GABA(B)Rs inhibit AP Ca signals throughout the entire dendritic arbor of these neurons. We then use local pharmacology and GABA uncaging to show that dendritic GABA(B)Rs also decrease the input resistance, shorten the AP afterdepolarization, and generate inhibitory postsynaptic potentials. However, we find that these electrophysiological effects recorded at the cell body do not correlate with the inhibition of AP Ca signals measured in spines and dendrites. Instead, we use voltage-clamp recordings to show that GABA(B)Rs directly inhibit several subtypes of voltage-sensitive calcium channels (VSCCs) in both spines and dendrites. Given the importance of VSCC-mediated Ca signals for neuronal function, our results have implications for the functional role of dendritic GABA(B)Rs in the prefrontal cortex and throughout the brain.
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Registered trials
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