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Decellularized Rat Lung Scaffolds Using Sodium Lauryl Ether Sulfate for Tissue Engineering.
1From the Department of Cardiopulmonary Bypass, State key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
ASAIO Journal (American Society for Artificial Internal Organs : 1992)
|September 2, 2017
Summary
Sodium lauryl ether sulfate (SLES) is a superior detergent for creating acellular lung scaffolds in lung tissue engineering. SLES better preserves extracellular matrix architecture and promotes cell infiltration and vascularization compared to sodium dodecyl sulfate (SDS).
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Tissue Engineering
Background:
- Perfusion decellularization using detergents is crucial for maintaining extracellular matrix (ECM) integrity in lung tissue engineering (LTE).
- The optimal detergent for producing acellular lung scaffolds with preserved ECM architecture and proteins remains undetermined.
- Sodium dodecyl sulfate (SDS) is a conventional detergent, but its efficacy compared to novel agents requires investigation.
Purpose of the Study:
- To compare the efficacy of sodium lauryl ether sulfate (SLES) and sodium dodecyl sulfate (SDS) in decellularizing rat lungs for tissue engineering.
- To evaluate the impact of SLES and SDS on preserving lung scaffold architecture, ECM proteins, and glycosaminoglycans (GAGs).
- To assess the in vivo biocompatibility and regenerative potential of SLES- and SDS-derived scaffolds.
Main Methods:
- Decellularization of rat lungs using perfusion with SLES and SDS.
- Assessment of decellularized scaffolds via histology, immunohistochemistry, scanning electron microscopy, DNA quantification, sulfated GAGs quantification, and western blot.
- Subcutaneous implantation of scaffolds in rats for 6 weeks, followed by histological evaluation (H&E and Masson staining).
Main Results:
- Both SLES and SDS effectively removed cells, but SLES demonstrated superior preservation of sulfated GAGs, lung architecture, and ECM proteins.
- SLES-decellularized scaffolds exhibited significantly enhanced cell infiltration and blood vessel formation after 6 weeks compared to SDS scaffolds.
- Histological analysis confirmed better structural integrity and biocompatibility of SLES-treated scaffolds.
Conclusions:
- Sodium lauryl ether sulfate (SLES) is a more effective detergent than sodium dodecyl sulfate (SDS) for generating acellular lung scaffolds.
- SLES preserves critical ECM components and promotes better host tissue integration, making it a promising agent for lung tissue engineering.
- SLES-based acellular lung scaffolds hold significant potential for future transplantation applications.
