Compound screening in human airway basal cells identifies Wnt pathway activators as potential pro-regenerative therapies.
Summary
Phenotypic screening of 1,429 compounds in primary human airway basal cells identified 17 pro-proliferative hits, including Wnt pathway activators and abacavir. 1-azakenpaullone activated Wnt targets and expanded basal cells in mice, supporting Wnt modulation as a regenerative strategy.
Key Findings
- Screen of 1,429 compounds identified 17 validated pro-proliferative hits in human airway basal cells.
- Multiple Wnt pathway activators and abacavir increased basal cell proliferation in colony and 3D organoid assays.
- 1-azakenpaullone activated Wnt target genes and expanded basal cells in mice.
Clinical Implications
Provides candidate small molecules for airway repair after injury/infection; informs strategies for diseases with epithelial damage (e.g., COPD, post-viral injury) pending safety and efficacy studies.
Why It Matters
Opens a translational path for pharmacologic enhancement of airway epithelial regeneration by targeting Wnt signaling in basal stem cells.
Limitations
- Proliferation does not guarantee functional mucociliary differentiation or barrier restoration.
- Wnt activation carries oncogenic risk; safety, dosing, and durability require careful testing.
Future Directions
Profile differentiation outcomes and mucociliary function after Wnt modulation; optimize dosing and delivery; assess safety in chronic injury models.
Study Information
- Study Type
- Basic/Mechanistic research
- Research Domain
- Treatment
- Evidence Level
- V - Preclinical screening with in vitro and in vivo validation
- Study Design
- OTHER