Related Experiment Video
Updated: May 21, 2025
09:03
Culture of Embryonic Mouse Cochlear Explants and Gene Transfer by Electroporation
Published on: January 12, 2015
12.8K
Ectoderm barcoding reveals neural and cochlear compartmentalization
Sandra de Haan1,2,3, Jingyan He1, Agustin A Corbat1
1Department of Cell and Molecular Biology, Karolinska Institutet, Solna, Sweden.
Science (New York, N.Y.)
|April 3, 2025
Summary
This study traces vertebrate development using advanced lineage tracing in mice. Researchers identified distinct cell lineages from the neural crest and placodes, revealing early brain and inner ear organization.
Area of Science:
- Developmental Biology
- Neuroscience
- Genetics
Background:
- Vertebrate development relies on placodes and neural crest cells.
- Understanding their precise lineage and differentiation is crucial for developmental biology and neuroscience.
Purpose of the Study:
- To investigate the lineages of placodes and neural crest in mice.
- To elucidate convergent differentiation pathways and identify distinct cell lineages.
- To provide foundational insights into early nervous system and inner ear development.
Main Methods:
- In utero nanoinjection at embryonic day 7.5 in mice.
- Heritable DNA barcodes for lineage tracing.
- High-throughput, next-generation single-cell lineage tracing.
- Clonal analyses.
Main Results:
- Successfully targeted ectoderm, including neural crest and placodes, for efficient manipulation.
- Elucidated convergent differentiation pathways.
- Identified distinct nervous system-, neural crest-, and otic placode-derived lineages.
- Revealed early neural and cochlear compartmentalization.
Conclusions:
- This study provides a high-resolution map of cell lineages during early vertebrate development.
- Identified distinct progenitor-cell relationships for various cell types.
- Offers foundational insights for neuroscience and developmental biology research.
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