Summary
Published in Particle and Fibre Toxicology (2019), this peer-reviewed study used 3D Petri Dish® micro-molds to form scaffold-free 3D microtissues. Full citation: Kabadi, Pranita K., et al. A novel human 3D lung microtissue model for nanoparticle-induced cell-matrix alterations
A novel human 3D lung microtissue model for nanoparticle-induced cell-matrix alterations
Research Overview
Multi-walled carbon nanotubes trigger inflammatory and pro-fibrotic responses in animal lungs, but standard nanoparticle safety testing relies on slow in vivo studies, and simpler 2D assays often disagree with animal results. Because inhalation is a key exposure route, this study built a human 3D lung microtissue platform from lung fibroblasts and epithelial cells to evaluate nanomaterial toxicity in a more physiological format.
The 3D platform is positioned as part of a tiered nanomaterial testing paradigm — a more efficient, human-relevant strategy for assessing acute toxicity and chronic outcomes than conventional 2D culture, and a higher-throughput complement to animal studies.
Key Discoveries
- Human lung fibroblasts and epithelial cells formed 3D lung microtissues for nanotoxicology
- Addresses documented disagreement between 2D in vitro screens and in vivo nanotoxicity results
- Supports tiered, higher-throughput safety testing of carbon nanotubes and other nanoparticles
