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Updated: Oct 9, 2025
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Mouse Embryonic Lung Culture, A System to Evaluate the Molecular Mechanisms of Branching
Published on: June 30, 2010
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A single-cell atlas of mouse lung development
Nicholas M Negretti1, Erin J Plosa1, John T Benjamin1
1Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
Development (Cambridge, England)
|December 20, 2021
Summary
This study maps lung cell development in mice using single-cell sequencing, revealing dynamic changes in epithelial, endothelial, and mesenchymal cells during organogenesis. It provides a resource for understanding lung development and cell function.
Area of Science:
- Developmental Biology
- Genomics
- Cell Biology
Background:
- Lung organogenesis involves intricate cellular coordination for proper spatial organization and function.
- Understanding the dynamic cellular alterations during lung development is crucial for identifying mechanisms of disease and therapeutic targets.
Purpose of the Study:
- To systematically map the dynamic changes in lung parenchymal cells during organogenesis.
- To explore lineage relationships and cellular dynamics across key developmental stages.
- To create a searchable single-cell atlas of lung development.
Main Methods:
- Single-cell RNA sequencing of over 100,000 cells from embryonic day 12 to postnatal day 14 in mice.
- Computational fate-likelihood prediction to infer cell trajectories.
- RNA in situ hybridization and immunofluorescence to validate cell types and spatial expression patterns.
Main Results:
- Detailed characterization of epithelial, endothelial, and mesenchymal cell populations throughout lung development.
- Identification of complex type 1 pneumocyte functions and mesenchymal Wnt expression patterns.
- Unveiled cellular dynamics during the saccular to alveolar stage transition, a critical period for gas-exchange surface expansion.
Conclusions:
- The study provides an integrated view of cellular dynamics governing lung organogenesis.
- The generated lung cell atlas serves as a valuable resource for future research into lung development and disease.
- Discoveries highlight the complexity of cell-cell interactions and signaling pathways during lung formation.
