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Updated: Aug 4, 2025
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Isolation and Characterization of Single Cells from Zebrafish Embryos
Published on: March 12, 2016
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A temporal single cell transcriptome atlas of zebrafish anterior segment development
Oliver Vöcking1, J K Famulski2
1Department of Biology, University of Kentucky, Lexington, USA.
Scientific Reports
|April 6, 2023
Summary
This study reveals how periocular mesenchyme cells develop into anterior segment tissues, crucial for eye development. These findings clarify developmental pathways for conditions like anterior segment dysgenesis (ASD).
Area of Science:
- Developmental Biology
- Ophthalmology
- Genomics
Background:
- Anterior segment dysgenesis (ASD) causes vision impairment due to malformed anterior segment (AS) tissues.
- Periocular mesenchyme (POM) cells are implicated in ASD, differentiating into anterior segment mesenchyme (ASM) cells that form AS tissues.
Purpose of the Study:
- To uncover the developmental trajectories of ASM cells during anterior segment formation.
- To identify molecular pathways and genes involved in AS development and their conservation across species.
Main Methods:
- Utilized a transgenic zebrafish line (Tg[foxc1b:GFP]) to fluorescently label ASM cells.
- Isolated GFP+ ASM cells at multiple developmental stages (48-144 hpf) for single-cell RNA sequencing.
- Performed clustering analysis and spatiotemporal validation of gene expression.
Main Results:
- Identified early subdifferentiation of ASM cells by 48 hpf.
- Revealed distinct developmental pathways for corneal epithelium, endothelium/stroma, and annular ligament (AL) lineages.
- Validated over 80 conserved genes and identified 13 novel genes for AL and 7 for corneal development.
Conclusions:
- Confirmed that POM-derived ASM cells give rise to AS tissues, supporting a long-standing hypothesis.
- Demonstrated significant molecular conservation in AS development between zebrafish and mammals.
- Provided a molecular basis for understanding ASD and potential therapeutic targets.
