PUBLICATION

Glycine is able to induce both a motility speed in- and decrease during zebrafish neuronal migration

Authors
Theisen, U., Hey, S., Hennig, C.D., Schnabel, R., Köster, R.W.
ID
ZDB-PUB-180915-3
Date
2018
Source
Communicative & integrative biology   11: 1-7 (Journal)
Registered Authors
Köster, Reinhard W., Theisen, Ulrike
Keywords
NKCC1, Neuronal migration, glycine, glycine receptor alpha 1, neurotransmitters, zebrafish
MeSH Terms
none
PubMed
30214676 Full text @ Commun. Integr. Biol.
Abstract
Various neurotransmitters influence neuronal migration in the developing zebrafish hindbrain. Migrating tegmental hindbrain nuclei neurons (THNs) are governed by depolarizing neurotransmitters (acetylcholine and glutamate), and glycine. In mature neurons, glycine binds to its receptor to hyperpolarize cells. This effect depends on the co-expression of the solute carrier KCC2. Immature precursors, however, typically express NKCC1 instead of KCC2, leading to membrane depolarization upon glycine receptor activation. As neuronal migration occurs in neurons after leaving the cell cycle and before terminal differentiation, we hypothesized that the switch from NKCC1 to KCC2 expression could alter the effect of glycine on THN migration. We tested this notion using in vivo cell tracking, overexpression of glycine receptor mutations and whole mount in situ hybridization. We summarize our findings in a speculative model, combining developmental age, glycine receptor strength and solute carrier expression to describe the effect of glycine on the migration of THNs.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping