PUBLICATION
Regulation of latent sensory hair cell precursors by glia in the zebrafish lateral line
- Authors
- Grant, K.A., Raible, D.W., and Piotrowski, T.
- ID
- ZDB-PUB-050106-4
- Date
- 2005
- Source
- Neuron 45(1): 69-80 (Journal)
- Registered Authors
- Piotrowski, Tatjana, Raible, David
- Keywords
- none
- MeSH Terms
-
- Animals
- Animals, Genetically Modified
- Carrier Proteins/genetics
- Cell Communication/physiology*
- Cell Differentiation/physiology*
- Cell Proliferation
- Embryo, Nonmammalian/cytology
- Embryo, Nonmammalian/embryology
- Embryo, Nonmammalian/metabolism
- Green Fluorescent Proteins
- High Mobility Group Proteins/genetics
- Mechanoreceptors/cytology
- Mechanoreceptors/embryology*
- Mechanoreceptors/metabolism
- Mechanotransduction, Cellular/physiology
- Mutation/genetics
- Neuroglia/cytology
- Neuroglia/metabolism*
- Neuroglia/transplantation
- Peripheral Nervous System/embryology
- Peripheral Nervous System/metabolism
- SOXE Transcription Factors
- Stem Cell Transplantation
- Stem Cells/cytology
- Stem Cells/metabolism*
- Zebrafish/embryology*
- Zebrafish/metabolism
- Zebrafish Proteins/genetics
- PubMed
- 15629703 Full text @ Neuron
Citation
Grant, K.A., Raible, D.W., and Piotrowski, T. (2005) Regulation of latent sensory hair cell precursors by glia in the zebrafish lateral line. Neuron. 45(1):69-80.
Abstract
The lateral line is a placodally derived mechanosensory organ in anamniotes that detects the movement of water. In zebrafish embryos, a migrating primordium deposits seven to nine clusters of sensory hair cells, or neuromasts, at intervals along the trunk. Postembryonically, neuromasts continue to be added. We show that some secondary neuromasts arise from a pool of latent precursors that are deposited by the primordium between primary neuromasts. Interneuromast cells lie adjacent to the lateral line nerve and associated glia. These cells remain quiescent while they are juxtaposed with the glia; however, when they move away from the nerve they increase proliferation and form neuromasts. If glia are manually removed or genetically ablated by mutations in cls/sox10, hypersensitive (hps), or rowgain (rog), neuromasts precociously differentiate. Transplantation of wt glia into mutants rescues the appropriate temporal differentiation of interneuromast cells. Our studies reveal a role for glia in regulating sensory hair cell precursors.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping