Modulation of Kv7 channels and excitability in the brain

DL Greene, N Hoshi - Cellular and Molecular Life Sciences, 2017 - Springer
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 …

PKC regulation of ion channels: The involvement of PIP2

KD Gada, DE Logothetis - Journal of Biological Chemistry, 2022 - ASBMB
Ion channels are integral membrane proteins whose gating has been increasingly shown to
depend on the presence of the low-abundance membrane phospholipid …

Conditional deletions of epilepsy-associated KCNQ2 and KCNQ3 channels from cerebral cortex cause differential effects on neuronal excitability

H Soh, R Pant, JJ LoTurco… - Journal of …, 2014 - Soc Neuroscience
KCNQ2 and KCNQ3 potassium channels have emerged as central regulators of pyramidal
neuron excitability and spiking behavior. However, despite an abundance of evidence …

Identifying mutation hotspots reveals pathogenetic mechanisms of KCNQ2 epileptic encephalopathy

J Zhang, EC Kim, C Chen, E Procko, S Pant, K Lam… - Scientific reports, 2020 - nature.com
Kv7 channels are enriched at the axonal plasma membrane where their voltage-dependent
potassium currents suppress neuronal excitability. Mutations in Kv7. 2 and Kv7. 3 subunits …

Peptide hormone ghrelin enhances neuronal excitability by inhibition of Kv7/KCNQ channels

L Shi, X Bian, Z Qu, Z Ma, Y Zhou, KW Wang… - Nature …, 2013 - nature.com
The gut-derived orexigenic peptide hormone ghrelin enhances neuronal firing in the
substantia nigra pars compacta, where dopaminergic neurons modulate the function of the …

Potential for therapeutic targeting of AKAP signaling complexes in nervous system disorders

AR Wild, ML Dell'Acqua - Pharmacology & therapeutics, 2018 - Elsevier
A common feature of neurological and neuropsychiatric disorders is a breakdown in the
integrity of intracellular signal transduction pathways. Dysregulation of ion channels and …

Quantitative properties and receptor reserve of the DAG and PKC branch of Gq-coupled receptor signaling

BH Falkenburger, EJ Dickson, B Hille - Journal of General Physiology, 2013 - rupress.org
Gq protein–coupled receptors (GqPCRs) of the plasma membrane activate the
phospholipase C (PLC) signaling cascade. PLC cleaves the membrane lipid …

Clustering and functional coupling of diverse ion channels and signaling proteins revealed by super-resolution STORM microscopy in neurons

J Zhang, CM Carver, FS Choveau, MS Shapiro - Neuron, 2016 - cell.com
The fidelity of neuronal signaling requires organization of signaling molecules into
macromolecular complexes, whose components are in intimate proximity. The intrinsic …

XE991 and linopirdine are state-dependent inhibitors for Kv7/KCNQ channels that favor activated single subunits

DL Greene, S Kang, N Hoshi - Journal of Pharmacology and Experimental …, 2017 - ASPET
M-channel inhibitors, especially XE991, are being used increasingly in animal experiments;
however, insufficient characterization of XE991 at times confounds the interpretation of …

PLC-mediated PI(4,5)P2 hydrolysis regulates activation and inactivation of TRPC6/7 channels

K Itsuki, Y Imai, H Hase, Y Okamura, R Inoue… - Journal of General …, 2014 - rupress.org
Transient receptor potential classical (or canonical)(TRPC) 3, TRPC6, and TRPC7 are a
subfamily of TRPC channels activated by diacylglycerol (DAG) produced through the …