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Method of preparing a decellularized porcine tendon using tributyl phosphate.
C R Deeken1, A K White, S L Bachman
1Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA.
Summary
Tri(n-butyl) phosphate (TnBP) effectively decellularizes porcine diaphragm tendon for soft tissue repair. This method preserves extracellular matrix (ECM) structure and biocompatibility, offering a promising new scaffold material.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Regenerative Medicine
Background:
- Extracellular matrix (ECM) materials are crucial for soft tissue repair, including vascular grafts and tendon reconstruction.
- Current ECM sources require decellularization to prevent disease transmission and immune responses.
- Preserving the native collagen architecture during decellularization is essential for scaffold integrity and function.
Purpose of the Study:
- To investigate the efficacy of various decellularization treatments on porcine diaphragm tendon.
- To identify a decellularization method that removes cells while preserving ECM structure and composition.
- To evaluate the suitability of decellularized porcine diaphragm tendon for soft tissue repair applications.
Main Methods:
- Porcine diaphragm tendon was subjected to decellularization treatments including peracetic acid, TritonX-100, sodium dodecyl sulfate, and tri(n-butyl) phosphate (TnBP).
- The effectiveness of each treatment was assessed based on cell removal and preservation of the native tissue architecture and composition.
- The resulting acellular scaffold's mechanical strength, enzymatic degradation resistance, and biocompatibility were evaluated.
Main Results:
- Only 1% tri(n-butyl) phosphate (TnBP) effectively removed cell nuclei while maintaining the structural integrity and composition of the porcine diaphragm tendon.
- The decellularized scaffold retained the original ECM composition, mechanical strength, and resistance to enzymatic degradation.
- The acellular tissue scaffold demonstrated good biocompatibility.
Conclusions:
- 1% tri(n-butyl) phosphate (TnBP) is an effective decellularization agent for porcine diaphragm tendon.
- The resulting acellular scaffold preserves key properties of the native tissue, making it suitable for soft tissue repair.
- Porcine diaphragm tendon represents a novel and promising biomaterial for tissue engineering applications.
