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Platform Effects on Regeneration by Pulmonary Basal Cells as Evaluated by Single-Cell RNA Sequencing
Allison M Greaney1, Taylor S Adams2, Micha Sam Brickman Raredon3
1Department of Biomedical Engineering, Yale University, New Haven, CT 06511, USA; Vascular Biology and Therapeutics, Yale University, New Haven, CT 06511, USA.
Cell Reports
|March 27, 2020
Summary
This study explores how different lab environments affect lung epithelial cell regeneration. Engineered models show the most natural cell development for pulmonary regenerative medicine.
Area of Science:
- Pulmonary Medicine
- Regenerative Medicine
- Tissue Engineering
- Cell Biology
Background:
- Cell-based therapies offer potential for chronic lung diseases.
- Understanding in vitro environmental effects on epithelial regeneration is crucial for therapeutic development.
Purpose of the Study:
- To investigate the impact of various in vitro platforms on the regenerative outcomes of pharmacologically expanded basal cells (peBCs).
- To compare the cellular and molecular profiles of peBCs cultured in different engineered environments.
Main Methods:
- Isolation and culture of pharmacologically expanded basal cells (peBCs) from rat tracheas.
- Culturing peBCs in four distinct in vitro platforms: organoid, air-liquid interface (ALI), engineered trachea, and engineered lung.
- Evaluation using single-cell RNA sequencing (scRNA-seq) and computational analysis, with native tracheal epithelium as a control.
Main Results:
- Distinct platform-specific effects were observed on epithelial cell differentiation and gene expression.
- Engineered models demonstrated more physiologically relevant differential outcomes compared to other platforms.
- scRNA-seq provided a detailed molecular comparison across platforms and against native tissue.
Conclusions:
- The choice of in vitro platform significantly influences pulmonary epithelial regenerative outcomes.
- Engineered models are superior for achieving physiologically accurate results in pulmonary epithelial regeneration research.
- This study provides a foundation for optimizing in vitro systems for cell-based pulmonary therapies.
