PUBLICATION
sox1a:eGFP transgenic line and single-cell transcriptomics reveal the origin of zebrafish intraspinal serotonergic neurons
- Authors
- Chen, F., Köhler, M., Cucun, G., Takamiya, M., Kizil, C., Cosacak, M.I., Rastegar, S.
- ID
- ZDB-PUB-230802-47
- Date
- 2023
- Source
- iScience 26: 107342107342 (Journal)
- Registered Authors
- Chen, Fushun, Cosacak, Mehmet Ilyas, Cucun, Gokhan, Kizil, Caghan, Köhler, Melina, Rastegar, Sepand, Takamiya, Masanari
- Keywords
- Cell biology, Neuroscience, Omics, Transcriptomics
- Datasets
- GEO:GSE226494
- MeSH Terms
- none
- PubMed
- 37529101 Full text @ iScience
Citation
Chen, F., Köhler, M., Cucun, G., Takamiya, M., Kizil, C., Cosacak, M.I., Rastegar, S. (2023) sox1a:eGFP transgenic line and single-cell transcriptomics reveal the origin of zebrafish intraspinal serotonergic neurons. iScience. 26:107342107342.
Abstract
Sox transcription factors are crucial for vertebrate nervous system development. In zebrafish embryo, sox1 genes are expressed in neural progenitor cells and neurons of ventral spinal cord. Our recent study revealed that the loss of sox1a and sox1b function results in a significant decline of V2 subtype neurons (V2s). Using single-cell RNA sequencing, we analyzed the transcriptome of sox1a lineage progenitors and neurons in the zebrafish spinal cord at four time points during embryonic development, employing the Tg(sox1a:eGFP) line. In addition to previously characterized sox1a-expressing neurons, we discovered the expression of sox1a in late-developing intraspinal serotonergic neurons (ISNs). Developmental trajectory analysis suggests that ISNs arise from lateral floor plate (LFP) progenitor cells. Pharmacological inhibition of the Notch signaling pathway revealed its role in negatively regulating LFP progenitor cell differentiation into ISNs. Our findings highlight the zebrafish LFP as a progenitor domain for ISNs, alongside known Kolmer-Agduhr (KA) and V3 interneurons.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping