Cited by 179Ion channel regulation and functionNeuroscience and Neuropharmacology ResearchCardiac electrophysiology and arrhythmias

Modulation of Kv7 channels and excitability in the brain

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Greene, Derek L., Hoshi, Naoto·2017·Cellular and Molecular Life Sciences

Abstract

Neuronal Kv7 channels underlie a voltage-gated non-inactivating potassium current known as the M-current. Due to its particular characteristics, Kv7 channels show pronounced control over the excitability of neurons. We will discuss various factors that have been shown to drastically alter the activity of this channel such as protein and phospholipid interactions, phosphorylation, calcium, and numerous neurotransmitters. Kv7 channels locate to key areas for the control of action potential initiation and propagation. Moreover, we will explore the dynamic surface expression of the channel modulated by neurotransmitters and neural activity. We will also focus on known principle functions of neural Kv7 channels: control of resting membrane potential and spiking threshold, setting the firing frequency, afterhyperpolarization after burst firing, theta resonance, and transient hyperexcitability from neurotransmitter-induced suppression of the M-current. Finally, we will discuss the contribution of altered Kv7 activity to pathologies such as epilepsy and cognitive deficits.

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Authors
Greene, D. L., & Hoshi, N.
Affiliations
University of California, Irvine (US)
Corresponding author
Hoshi, Naoto
Venue
Cellular and Molecular Life Sciences
Published
2016-09-19
Volume
74
Issue
3
Pages
495-508
ISSN
  • 1420-682X (ISSN-L)
  • 1420-9071
OpenAlex
W2521115404
Cited by
177
References
169
Citations by year
2026: 12 · 2025: 21 · 2024: 16 · 2023: 17 · 2022: 30 · 2021: 22 · 2020: 24 · 2019: 14 · 2018: 11 · 2017: 7 · 2016: 3
FWCI
1.05
Type
journal article
Language
en
Open access
Locations
  • Cellular and Molecular Life Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
National Institute of Neurological Disorders and Stroke (R01NS067288)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ion channel regulation and function
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
Keywords
Kv7 channels, M-current, neuronal excitability, voltage-gated potassium channels, protein-lipid interactions, phosphorylation, calcium regulation, neurotransmitter modulation, action potential generation, resting membrane potential, afterhyperpolarization, epilepsy, cognitive impairment, brain
MeSH terms
Action Potentials, Animals, Brain, Calcium, Calmodulin, Epilepsy, Humans, Membrane Potentials, Neurons, Signal Transduction, GTP-Binding Protein alpha Subunits, Gq-G11, KCNQ Potassium Channels, Cognitive Dysfunction

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