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Updated: Jan 10, 2026
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Decellularization and Recellularization of Whole Livers
Published on: February 4, 2011
22.4K
Development of Acellular Hepatic Scaffolds Through a Low-Cost Gravity-Assisted Perfusion Decellularization Method
María Fernanda Duarte-Ortega1, Luis Bernardo Enríquez-Sánchez1, Manuel David Pérez-Ruiz1
1Facultad de Medicina y Ciencias Biomédicas, Universidad Autónoma de Chihuahua, Chihuahua 31109, Mexico.
Biomimetics (Basel, Switzerland)
|November 26, 2025
Summary
A new gravity-assisted perfusion method efficiently decellularizes rat livers, creating high-quality scaffolds without pumps. This low-cost technique is ideal for tissue engineering and regenerative medicine in resource-limited settings.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Tissue Engineering
Background:
- Developing cost-effective decellularization methods is crucial for tissue engineering and regenerative medicine.
- Limited access to specialized perfusion systems hinders progress in resource-constrained regions.
Purpose of the Study:
- To standardize a gravity-assisted perfusion protocol for rat liver decellularization.
- To evaluate its efficacy compared to conventional immersion methods.
Main Methods:
- A gravity-driven vascular flushing method was used for adult Wistar rat liver decellularization.
- The protocol operated without pumps or pressurized equipment.
- Scaffolds were assessed via macroscopic inspection, Masson's trichrome staining, and residual DNA quantification.
Main Results:
- Gravity-assisted perfusion significantly improved cellular removal and extracellular matrix (ECM) preservation over immersion.
- Residual DNA levels were significantly lower (3.7 ng/mg) in perfused scaffolds, meeting decellularization thresholds (<50 ng/mg).
- Histological analysis confirmed ECM integrity and absence of nuclei in perfused scaffolds.
Conclusions:
- A low-cost, reproducible gravity-assisted system generates high-quality acellular hepatic scaffolds without mechanical pumps.
- This method is accessible and scalable for labs with limited infrastructure and educational purposes.
- The approach supports future recellularization and preclinical studies for bioengineered liver constructs.
