PUBLICATION
Cellular Localization of gdnf in Adult Zebrafish Brain
- Authors
- Wong, C.E.D., Hua, K., Monis, S., Norazit, A., Noor, S.M., Ekker, M.
- ID
- ZDB-PUB-200515-2
- Date
- 2020
- Source
- Brain sciences 10(5): (Journal)
- Registered Authors
- Ekker, Marc
- Keywords
- GABAergic neurons, Sox2, dlx, dopaminergic neurons, gdnf, neuronal progenitor cells, radial glial cells
- MeSH Terms
- none
- PubMed
- 32403347 Full text @ Brain Sci
Citation
Wong, C.E.D., Hua, K., Monis, S., Norazit, A., Noor, S.M., Ekker, M. (2020) Cellular Localization of gdnf in Adult Zebrafish Brain. Brain sciences. 10(5):.
Abstract
Glial cell line-derived neurotrophic factor (GDNF) was initially described as important for dopaminergic neuronal survival and is involved in many other essential functions in the central nervous system. Characterization of GDNF phenotype in mammals is well described; however, studies in non-mammalian vertebrate models are scarce. Here, we characterized the anatomical distribution of gdnf-expressing cells in adult zebrafish brain by means of combined in situ hybridization (ISH) and immunohistochemistry. Our results revealed that gdnf was widely dispersed in the brain. gdnf transcripts were co-localized with radial glial cells along the ventricular area of the telencephalon and in the hypothalamus. Interestingly, Sox2 positive cells expressed gdnf in the neuronal layer but not in the ventricular zone of the telencephalon. A subset of GABAergic precursor cells labeled with dlx6a-1.4kbdlx5a/6a: green fluorescence protein (GFP) in the pallium, parvocellular preoptic nucleus, and the anterior and dorsal zones of the periventricular hypothalamus also showed expression with gdnf mRNA. In addition, gdnf signals were detected in subsets of dopaminergic neurons, including those in the ventral diencephalon, similar to what is seen in mammalian brain. Our work extends our knowledge of gdnf action sites and suggests a potential role for gdnf in adult brain neurogenesis and regeneration.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping