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Zia S, Djalali-Cuevas A, Pflaum M, Hegermann J, Dipresa D, Kalozoumis P, Kouvaka A, Burgwitz K, Andriopoulou S, Repanas A, Will F, Grote K, Schrimpf C, Toumpaniari S, Mueller M, Glasmacher B, Haverich A, Morticelli L, Korossis S. Development of a dual-component infection-resistant arterial replacement for small-caliber reconstructions: A proof-of-concept study. Front Bioeng Biotechnol 2023; 11:957458. [PMID: 36741762 PMCID: PMC9889865 DOI: 10.3389/fbioe.2023.957458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 01/02/2023] [Indexed: 01/19/2023] Open
Abstract
Introduction: Synthetic vascular grafts perform poorly in small-caliber (<6mm) anastomoses, due to intimal hyperplasia and thrombosis, whereas homografts are associated with limited availability and immunogenicity, and bioprostheses are prone to aneurysmal degeneration and calcification. Infection is another important limitation with vascular grafting. This study developed a dual-component graft for small-caliber reconstructions, comprising a decellularized tibial artery scaffold and an antibiotic-releasing, electrospun polycaprolactone (PCL)/polyethylene glycol (PEG) blend sleeve. Methods: The study investigated the effect of nucleases, as part of the decellularization technique, and two sterilization methods (peracetic acid and γ-irradiation), on the scaffold's biological and biomechanical integrity. It also investigated the effect of different PCL/PEG ratios on the antimicrobial, biological and biomechanical properties of the sleeves. Tibial arteries were decellularized using Triton X-100 and sodium-dodecyl-sulfate. Results: The scaffolds retained the general native histoarchitecture and biomechanics but were depleted of glycosaminoglycans. Sterilization with peracetic acid depleted collagen IV and produced ultrastructural changes in the collagen and elastic fibers. The two PCL/PEG ratios used (150:50 and 100:50) demonstrated differences in the structural, biomechanical and antimicrobial properties of the sleeves. Differences in the antimicrobial activity were also found between sleeves fabricated with antibiotics supplemented in the electrospinning solution, and sleeves soaked in antibiotics. Discussion: The study demonstrated the feasibility of fabricating a dual-component small-caliber graft, comprising a scaffold with sufficient biological and biomechanical functionality, and an electrospun PCL/PEG sleeve with tailored biomechanics and antibiotic release.
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Affiliation(s)
- Sonia Zia
- Lower Saxony Centre for Biomedical Engineering Implant Research and Development, Hannover Medical School, Hannover, Germany
| | - Adrian Djalali-Cuevas
- Lower Saxony Centre for Biomedical Engineering Implant Research and Development, Hannover Medical School, Hannover, Germany
| | - Michael Pflaum
- Lower Saxony Centre for Biomedical Engineering Implant Research and Development, Hannover Medical School, Hannover, Germany
| | - Jan Hegermann
- Institute of Functional and Applied Anatomy, Research Core Unit Electron Microscopy, Hannover Medical School, Hannover, Germany
| | - Daniele Dipresa
- Lower Saxony Centre for Biomedical Engineering Implant Research and Development, Hannover Medical School, Hannover, Germany
| | - Panagiotis Kalozoumis
- Lower Saxony Centre for Biomedical Engineering Implant Research and Development, Hannover Medical School, Hannover, Germany
| | - Artemis Kouvaka
- Lower Saxony Centre for Biomedical Engineering Implant Research and Development, Hannover Medical School, Hannover, Germany
| | - Karin Burgwitz
- Lower Saxony Centre for Biomedical Engineering Implant Research and Development, Hannover Medical School, Hannover, Germany
| | - Sofia Andriopoulou
- Lower Saxony Centre for Biomedical Engineering Implant Research and Development, Hannover Medical School, Hannover, Germany
| | - Alexandros Repanas
- Institute for Multiphase Processes, Leibniz University Hannover, Hannover, Germany
| | - Fabian Will
- LLS ROWIAK LaserLabSolutions GmbH, Hannover, Germany
| | - Karsten Grote
- Cardiology and Angiology, Philipps-University Marburg, Marburg, Germany
| | - Claudia Schrimpf
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Sotiria Toumpaniari
- Cardiopulmonary Regenerative Engineering Group (CARE), Centre for Biological Engineering, Loughborough University, Loughborough, United Kingdom,Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough, United Kingdom
| | - Marc Mueller
- Institute for Multiphase Processes, Leibniz University Hannover, Hannover, Germany
| | - Birgit Glasmacher
- Lower Saxony Centre for Biomedical Engineering Implant Research and Development, Hannover Medical School, Hannover, Germany,Institute for Multiphase Processes, Leibniz University Hannover, Hannover, Germany
| | - Axel Haverich
- Lower Saxony Centre for Biomedical Engineering Implant Research and Development, Hannover Medical School, Hannover, Germany,Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Lucrezia Morticelli
- Lower Saxony Centre for Biomedical Engineering Implant Research and Development, Hannover Medical School, Hannover, Germany
| | - Sotirios Korossis
- Lower Saxony Centre for Biomedical Engineering Implant Research and Development, Hannover Medical School, Hannover, Germany,Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany,Cardiopulmonary Regenerative Engineering Group (CARE), Centre for Biological Engineering, Loughborough University, Loughborough, United Kingdom,Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough, United Kingdom,*Correspondence: Sotirios Korossis,
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