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Updated: Jul 25, 2026
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Two Methods for Decellularization of Plant Tissues for Tissue Engineering Applications
Published on: May 31, 2018
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Engineering vascular grafts from decellularized plants: Advances and challenges.
1Fred DeMatteis School of Engineering and Applied Science, Hofstra University, New York, USA. Nicholas.J.Merna@hofstra.edu.
Histology and Histopathology
|May 26, 2025
Summary
Decellularized plant tissues offer a promising, biocompatible scaffold for small-caliber vascular grafts. Conditioning in perfusion bioreactors enhances their functionality for potential clinical use in bypass surgeries.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Vascular Surgery
Background:
- Small-caliber vascular grafts (<6 mm) are crucial for bypass surgeries but face challenges with current synthetic options like ePTFE and Dacron, including thrombosis and compliance mismatch.
- Autologous vessels are ideal but often limited by availability and quality.
- Tissue-engineered vascular grafts (TEVGs) aim to improve outcomes by providing biocompatible scaffolds with endothelial linings.
Purpose of the Study:
- To review recent advances in using decellularized plant tissues as natural scaffolds for small-diameter TEVGs.
- To explore the role of perfusion bioreactor conditioning in enhancing the functionality of plant-based vascular grafts.
- To compare the performance of plant-based grafts with conventional synthetic grafts and identify future research directions.
Main Methods:
- Utilizing decellularized plant tissues (e.g., parsley stems, leatherleaf leaves) as natural extracellular matrix (ECM) scaffolds.
- Recellularizing plant scaffolds with endothelial cells and smooth muscle cells (SMCs).
- Conditioning recellularized grafts in perfusion bioreactors simulating physiological pulsatile flow and pressure.
Main Results:
- Decellularized plant scaffolds, primarily cellulose-based, exhibit biocompatibility, porosity, and non-thrombogenic properties.
- Plant-based grafts support endothelialization and withstand physiological pressures, showing promise for small-caliber vascular replacement.
- Perfusion bioreactor conditioning promotes endothelial cell alignment and SMC maturation, improving graft strength, compliance, and reducing thrombogenicity.
Conclusions:
- Decellularized plant scaffolds offer a cost-effective, scalable, and ethically viable alternative for creating small-caliber vascular grafts.
- Perfusion bioreactor conditioning significantly enhances the functional properties of plant-based vascular grafts.
- Further research is needed for standardization, mechanical optimization, and long-term in vivo validation before clinical application.
