Decellularized Nerve Grafts
Decellularized Nerve Grafts - Related Videos
09:24
Decellularization and Recellularization of Whole Livers
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Cited by 39 •
2011
Perfusion decellularization is a novel technique to produce whole liver scaffolds that retains the organ's extracellular matrix composition and microarchitecture. Herein, the method of preparing whole organ scaffolds using perfusion decellularization and subsequent repopulation with hepatocytes is described. Functional and transplantable liver grafts can be generated using this technique.
20:14
Combining Peripheral Nerve Grafting and Matrix Modulation to Repair the Injured Rat Spinal Cord
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Cited by 21 •
2009
Traumatic injury to the spinal cord disrupts communication with the brain. To restore lost connectivity we utilize a peripheral nerve graft to provide a substratum for regenerating fibers in combination with neurotrophic factors and matrix-modulating enzymes to remove inhibitory molecules to promote long distance growth.
08:17
Low-Dose Gamma Radiation Sterilization for Decellularized Tracheal Grafts
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Cited by 1 •
2023
Obtaining sterilization is essential for tracheal tissue transplant. Herein, we present a sterilization protocol using low-dose gamma irradiation that is fully tolerated by organs.
13:04
Generation and Grafting of Tissue-engineered Vessels in a Mouse Model
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Cited by 13 •
2015
Here, we present a protocol to generate tissue engineered vessel grafts that are functional for grafting into mice by double seeding partially induced pluripotent stem cell (PiPSC) - derived smooth muscle cells and PiPSC - derived endothelial cells on a decellularized vessel scaffold bioreactor.
05:17
Cardiopulmonary Complex Decellularization: A Technique for Decellularizing Heart and Lungs from Murine Model
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2025
This video demonstrates a method of producing decellularized extracellular matrix or ECM scaffolds by applying antegrade perfusion of detergents through the vasculature. The structural ECM scaffolds can then be used to analyze ECM remodeling associated with cardiopulmonary disease.
FAQs
The preserved extracellular matrix provides structural proteins and aligned, native three-dimensional pathways that can guide regenerating axons across a nerve gap. This architecture supplies directional organization that is difficult to reproduce with an unstructured material. In bioengineering, maintaining these pathways is therefore central to retaining the graft’s regenerative guidance function after cellular components have been removed.
Effective processing must disrupt and wash out cellular membranes, nuclei, and other immunogenic components without substantially damaging the extracellular matrix, alignment, or mechanical properties. Excessive treatment may compromise the structural features needed for guidance and handling, whereas incomplete processing may leave unwanted cellular material. This balance determines whether the resulting graft remains both biologically useful and structurally functional.
Their main distinction is the retention of tissue-derived architecture, including native extracellular matrix organization and aligned conduits. Synthetic conduits do not originate from donor nerve tissue, while decellularized grafts offer a clinically relevant biological alternative. The comparison is not simply biological versus artificial: graft performance depends on how processing preserves guidance and mechanical properties, as well as how each option suits nerve-gap repair.
Chemical, enzymatic, or physical treatments can be used to disrupt cellular membranes and nuclei and then wash out the resulting cellular material. These approaches are selected and controlled according to the need to remove immunogenic components while preserving extracellular matrix structure and native pathways. The processing workflow therefore focuses on both effective decellularization and protection of the scaffold’s regenerative features.
Bioengineers can use these grafts to bridge gaps in damaged peripheral nerves, where an aligned tissue-derived scaffold may support axonal regeneration. They may also combine the graft with Schwann cells, stem cells, or other biomaterials to improve regenerative performance. Such designs use the graft as a biologically organized framework while adding cellular or material components intended to enhance repair.
Evaluation should consider whether cellular and immunogenic components were removed while structural proteins, aligned pathways, and suitable mechanical properties were retained. These features determine how well the graft can provide directional support and function as a bridge across a nerve gap. In bioengineering studies, they also help assess whether added Schwann cells, stem cells, or biomaterials can be integrated effectively.