Journal Article

DZNE-2021-01470

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Developmental HCN channelopathy results in decreased neural progenitor proliferation and microcephaly in mice.

Schlusche, A. K. (First author)DZNE* ; Vay, S. U. ; Kleinenkuhnen, N. ; Sandke, S. ; Campos-Martín, R. ; Florio, M. ; Huttner, W. ; Tresch, A. ; Roeper, J. ; Rueger, M. A. ; Jakovcevski, I.DZNE* ; Stockebrand, M.DZNE* ; Isbrandt, D. (Last author)DZNE*

2021
National Acad. of Sciences Washington, DC

This record in other databases:    

Please use a persistent id in citations: doi:10.1073/pnas.2009393118

Abstract: The development of the cerebral cortex relies on the controlled division of neural stem and progenitor cells. The requirement for precise spatiotemporal control of proliferation and cell fate places a high demand on the cell division machinery, and defective cell division can cause microcephaly and other brain malformations. Cell-extrinsic and -intrinsic factors govern the capacity of cortical progenitors to produce large numbers of neurons and glia within a short developmental time window. In particular, ion channels shape the intrinsic biophysical properties of precursor cells and neurons and control their membrane potential throughout the cell cycle. We found that hyperpolarization-activated cyclic nucleotide-gated cation (HCN) channel subunits are expressed in mouse, rat, and human neural progenitors. Loss of HCN channel function in rat neural stem cells impaired their proliferation by affecting the cell-cycle progression, causing G1 accumulation and dysregulation of genes associated with human microcephaly. Transgene-mediated, dominant-negative loss of HCN channel function in the embryonic mouse telencephalon resulted in pronounced microcephaly. Together, our findings suggest a role for HCN channel subunits as a part of a general mechanism influencing cortical development in mammals.

Keyword(s): Animals (MeSH) ; Cell Cycle (MeSH) ; Cell Death (MeSH) ; Cell Proliferation: physiology (MeSH) ; Cells, Cultured (MeSH) ; Cerebral Cortex: cytology (MeSH) ; Cerebral Cortex: embryology (MeSH) ; Channelopathies: embryology (MeSH) ; Channelopathies: etiology (MeSH) ; Embryonic Stem Cells: metabolism (MeSH) ; Embryonic Stem Cells: physiology (MeSH) ; Humans (MeSH) ; Hyperpolarization-Activated Cyclic Nucleotide-Gated Channels: antagonists & inhibitors (MeSH) ; Hyperpolarization-Activated Cyclic Nucleotide-Gated Channels: genetics (MeSH) ; Hyperpolarization-Activated Cyclic Nucleotide-Gated Channels: metabolism (MeSH) ; Hyperpolarization-Activated Cyclic Nucleotide-Gated Channels: physiology (MeSH) ; Mice (MeSH) ; Mice, Transgenic (MeSH) ; Microcephaly: embryology (MeSH) ; Microcephaly: etiology (MeSH) ; Neural Stem Cells: metabolism (MeSH) ; Neural Stem Cells: physiology (MeSH) ; Neurogenesis: physiology (MeSH) ; Rats (MeSH) ; HCN channelopathy ; brain development ; cell cycle ; microcephaly

---

Contributing Institute(s):

1. Experimental Neurophysiology (AG Isbrandt)

Research Program(s):

1. 351 - Brain Function (POF4-351) (POF4-351)

Appears in the scientific report 2021

---

Database coverage:
; BIOSIS Previews ; Biological Abstracts ; Clarivate Analytics Master Journal List ; Current Contents - Agriculture, Biology and Environmental Sciences ; Current Contents - Life Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 10 ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection ; Zoological Record

---