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Updated: May 26, 2026
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Comparable Decellularization of Fetal and Adult Cardiac Tissue Explants as 3D-like Platforms for In Vitro Studies
Published on: March 21, 2019
Comparative assessment of detergent-based protocols for mouse lung de-cellularization and re-cellularization.
John M Wallis1, Zachary D Borg, Amanda B Daly
1Department of Medicine, University of Vermont College of Medicine, Burlington, Vermont, USA.
Tissue Engineering. Part C, Methods
|December 15, 2011
Summary
Researchers compared three detergent methods for decellularizing lungs to create scaffolds for tissue engineering. While methods differed in scaffold composition and mechanics, initial cell seeding and growth were similar across all approaches.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Tissue Engineering
Background:
- Detergent-based decellularization is explored for creating lung scaffolds for ex vivo tissue generation.
- Detergents can activate matrix metalloproteinases, potentially degrading extracellular matrix (ECM) proteins crucial for cell growth.
- Optimal decellularization methods for supporting recellularization and functional lung tissue generation remain unclear.
Purpose of the Study:
- To compare three detergent-based decellularization methods for whole lung scaffolds.
- To assess the impact of decellularization on gelatinase activation, scaffold histology, protein composition, and lung mechanics.
- To evaluate how different decellularization methods affect subsequent cell binding and initial growth.
Main Methods:
- Whole lungs were decellularized using Triton-X 100/sodium deoxycholate (Triton/SDC), sodium dodecyl sulfate (SDS), or CHAPS.
- Gelatinase activation was measured.
- Scaffold histology, ECM and intracellular protein content (via immunohistochemistry, mass spectrometry, western blotting), and lung mechanics (airways resistance and elastance) were assessed.
- Intratracheal inoculation with bone marrow-derived mesenchymal stromal cells or C10 mouse lung epithelial cells was performed to evaluate recellularization.
Main Results:
- Significant differences were observed in gelatinase activation between the three methods.
- Variations in ECM and intracellular protein retention, as well as lung mechanics (airways resistance and elastance), were noted among the decellularization approaches.
- Despite structural and compositional differences in the resulting scaffolds, initial cell binding and growth were similar across all three decellularization methods after inoculation with either cell type.
Conclusions:
- While different detergent-based decellularization methods yield lung scaffolds with distinct structural and mechanical properties, these variations do not significantly impact initial cell binding and growth.
- The choice of decellularization method may influence scaffold characteristics, but initial recellularization appears robust across the studied approaches.
- Further research may explore long-term cell function and tissue development in these varied scaffolds.
