The Hyperpolarization-Activated HCN4 Channel is Important for Proper Maintenance of Oscillatory Activity in the Thalamocortical System
Zobeiri M, Chaudhary R, Blaich A, Rottmann M, Herrmann S, Meuth P, Bista P, Kanyshkova T, Lüttjohann A, Narayanan V, Hundehege P, Meuth SG, Romanelli MN, Urbano FJ, Pape HC, Budde T, Ludwig A (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 29
Pages Range: 2291-2304
Journal Issue: 5
Abstract
Hyperpolarization-activated cation channels are involved, among other functions, in learning and memory, control of synaptic transmission and epileptogenesis. The importance of the HCN1 and HCN2 isoforms for brain function has been demonstrated, while the role of HCN4, the third major neuronal HCN subunit, is not known. Here we show that HCN4 is essential for oscillatory activity in the thalamocortical (TC) network. HCN4 is selectively expressed in various thalamic nuclei, excluding the thalamic reticular nucleus. HCN4-deficient TC neurons revealed a massive reduction of Ih and strongly reduced intrinsic burst firing, whereas the current was normal in cortical pyramidal neurons. In addition, evoked bursting in a thalamic slice preparation was strongly reduced in the mutant mice probes. HCN4-deficiency also significantly slowed down thalamic and cortical oscillations during active wakefulness. Taken together, these results establish that thalamic HCN4 channels are essential for the production of rhythmic intrathalamic oscillations and determine regular TC oscillatory activity during alert states.
Authors with CRIS profile
Stefan Herrmann
Lehrstuhl für Pharmakologie und Toxikologie
Andreas Ludwig
Lehrstuhl für Pharmakologie und Toxikologie
Involved external institutions
Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE) / Institute of Physiology, Molecular Biology and Neurosciences
Argentina (AR)
Westfälische Wilhelms-Universität (WWU) Münster
Germany (DE)
Università degli Studi di Firenze / University of Florence
Italy (IT)
Argentina (AR)
Westfälische Wilhelms-Universität (WWU) Münster
Germany (DE)
Università degli Studi di Firenze / University of Florence
Italy (IT)
How to cite
APA:
Zobeiri, M., Chaudhary, R., Blaich, A., Rottmann, M., Herrmann, S., Meuth, P.,... Ludwig, A. (2019). The Hyperpolarization-Activated HCN4 Channel is Important for Proper Maintenance of Oscillatory Activity in the Thalamocortical System. Cerebral Cortex, 29(5), 2291-2304. https://doi.org/10.1093/cercor/bhz047
MLA:
Zobeiri, Mehrnoush, et al. "The Hyperpolarization-Activated HCN4 Channel is Important for Proper Maintenance of Oscillatory Activity in the Thalamocortical System." Cerebral Cortex 29.5 (2019): 2291-2304.
BibTeX: Download