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Scuglia M, Frazão LP, Miranda A, Martins A, Barbosa-Sequeira J, Coimbra D, Longatto-Filho A, Reis RL, Nogueira-Silva C, Neves NM, Correia-Pinto J. Diaphragmatic hernia repair porcine model to compare the performance of biodegradable membranes against Gore-Tex ®. Pediatr Surg Int 2023; 40:7. [PMID: 37999778 PMCID: PMC10673990 DOI: 10.1007/s00383-023-05584-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/25/2023] [Indexed: 11/25/2023]
Abstract
BACKGROUND Patch repair of congenital diaphragmatic hernia (CDH) using Gore-Tex® is associated with infection, adhesions, hernia recurrence, long-term musculoskeletal sequels and poor tissue regeneration. To overcome these limitations, the performance of two novel biodegradable membranes was tested to repair CDH in a growing pig model. METHODS Twelve male pigs were randomly assigned to 3 different groups of 4 animals each, determined by the type of patch used during thoracoscopic diaphragmatic hernia repair (Gore-Tex®, polycaprolactone electrospun membrane-PCLem, and decellularized human chorion membrane-dHCM). After 7 weeks, all animals were euthanized, followed by necropsy for diaphragmatic evaluation and histological analysis. RESULTS Thoracoscopic defect creation and diaphragmatic repair were performed without any technical difficulty in all groups. However, hernia recurrence rate was 0% in Gore-Tex®, 50% in PCLem and 100% in dHCM groups. At euthanasia, Gore-Tex® patches appeared virtually unchanged and covered with a fibrotic capsule, while PCLem and dHCM patches were replaced by either floppy connective tissue or vascularized and floppy regenerated membranous tissue, respectively. CONCLUSION Gore-Tex® was associated with a higher survival rate and lower recurrence. Nevertheless, the proposed biodegradable membranes were associated with better tissue integration when compared with Gore-Tex®.
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Affiliation(s)
- Marianna Scuglia
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Laura P Frazão
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- 3B's Research Group, I3B's - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
| | - Alice Miranda
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Albino Martins
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- 3B's Research Group, I3B's - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
| | - Joana Barbosa-Sequeira
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Department of Pediatric Surgery, Centro Materno Infantil do Norte, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - Diana Coimbra
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Adhemar Longatto-Filho
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Department of Pathology (LIM-14), University of São Paulo School of Medicine, São Paulo, Brazil
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, Brazil
| | - Rui L Reis
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- 3B's Research Group, I3B's - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
| | - Cristina Nogueira-Silva
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal
| | - Nuno M Neves
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.
- 3B's Research Group, I3B's - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal.
| | - Jorge Correia-Pinto
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Department of Pediatric Surgery, Hospital de Braga, Braga, Portugal
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Andreas MN, Boehm AK, Tang P, Moosburner S, Klein O, Daneshgar A, Gaßner JMGV, Raschzok N, Haderer L, Wulsten D, Rückert JC, Spuler S, Pratschke J, Sauer IM, Hillebrandt KH. Development and systematic evaluation of decellularization protocols in different application models for diaphragmatic tissue engineering. BIOMATERIALS ADVANCES 2023; 153:213493. [PMID: 37418932 DOI: 10.1016/j.bioadv.2023.213493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 05/27/2023] [Accepted: 05/31/2023] [Indexed: 07/09/2023]
Abstract
BACKGROUND Tissue engineered bioscaffolds based on decellularized composites have gained increasing interest for treatment of various diaphragmatic impairments, including muscular atrophies and diaphragmatic hernias. Detergent-enzymatic treatment (DET) constitutes a standard strategy for diaphragmatic decellularization. However, there is scarce data on comparing DET protocols with different substances in distinct application models in their ability to maximize cellular removal while minimizing extracellular matrix (ECM) damage. METHODS We decellularized diaphragms of male Sprague Dawley rats with 1 % or 0.1 % sodium dodecyl sulfate (SDS) and 4 % sodium deoxycholate (SDC) by orbital shaking (OS) or retrograde perfusion (RP) through the vena cava. We evaluated decellularized diaphragmatic samples by (1) quantitative analysis including DNA quantification and biomechanical testing, (2) qualitative and semiquantitative analysis by proteomics, as well as (3) qualitative assessment with macroscopic and microscopic evaluation by histological staining, immunohistochemistry and scanning electron microscopy. RESULTS All protocols produced decellularized matrices with micro- and ultramorphologically intact architecture and adequate biomechanical performance with gradual differences. The proteomic profile of decellularized matrices contained a broad range of primal core and ECM-associated proteins similar to native muscle. While no outstanding preference for one singular protocol was determinable, SDS-treated samples showed slightly beneficial properties in comparison to SDC-processed counterparts. Both application modalities proved suitable for DET. CONCLUSION DET with SDS or SDC via orbital shaking or retrograde perfusion constitute suitable methods to produce adequately decellularized matrices with characteristically preserved proteomic composition. Exposing compositional and functional specifics of variously treated grafts may enable establishing an ideal processing strategy to sustain valuable tissue characteristics and optimize consecutive recellularization. This aims to design an optimal bioscaffold for future transplantation in quantitative and qualitative diaphragmatic defects.
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Affiliation(s)
- Marco N Andreas
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Agnes K Boehm
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Peter Tang
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Simon Moosburner
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Oliver Klein
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Assal Daneshgar
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Joseph M G V Gaßner
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Nathanael Raschzok
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Luna Haderer
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Dag Wulsten
- Julius-Wolff-Institut für Biomechanik und Muskuloskeletale Regeneration, Augustenburgerplatz 1, 13353 Berlin, Germany
| | - Jens-Carsten Rückert
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Simone Spuler
- Max-Delbrück-Centrum für Molekulare Medizin in der Helmholtz-Gemeinschaft, Robert-Rössle-Straße 10, 13125 Berlin-Buch, Germany
| | - Johann Pratschke
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany; Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt Universität zu Berlin, Cluster of Excellence Matters of Activity. Image Space Material funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy - EXC 2025, Germany
| | - Igor M Sauer
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany; Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt Universität zu Berlin, Cluster of Excellence Matters of Activity. Image Space Material funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy - EXC 2025, Germany.
| | - Karl H Hillebrandt
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
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Duan L, Wang Z, Fan S, Wang C, Zhang Y. Research progress of biomaterials and innovative technologies in urinary tissue engineering. Front Bioeng Biotechnol 2023; 11:1258666. [PMID: 37645598 PMCID: PMC10461011 DOI: 10.3389/fbioe.2023.1258666] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 08/02/2023] [Indexed: 08/31/2023] Open
Abstract
Substantial interests have been attracted to multiple bioactive and biomimetic biomaterials in recent decades because of their ability in presenting a structural and functional reconstruction of urinary tissues. Some innovative technologies have also been surging in urinary tissue engineering and urological regeneration by providing insights into the physiological behavior of the urinary system. As such, the hierarchical structure and tissue function of the bladder, urethra, and ureter can be reproduced similarly to the native urinary tissues. This review aims to summarize recent advances in functional biomaterials and biomimetic technologies toward urological reconstruction. Various nanofirous biomaterials derived from decellularized natural tissues, synthetic biopolymers, and hybrid scaffolds were developed with desired microstructure, surface chemistry, and mechanical properties. Some growth factors, drugs, as well as inorganic nanomaterials were also utilized to enhance the biological activity and functionality of scaffolds. Notably, it is emphasized that advanced approaches, such as 3D (bio) printing and organoids, have also been developed to facilitate structural and functional regeneration of the urological system. So in this review, we discussed the fabrication strategies, physiochemical properties, and biofunctional modification of regenerative biomaterials and their potential clinical application of fast-evolving technologies. In addition, future prospective and commercial products are further proposed and discussed.
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Affiliation(s)
- Liwei Duan
- The Second Hospital, Jilin University, Changchun, China
| | - Zongliang Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| | - Shuang Fan
- The Second Hospital, Jilin University, Changchun, China
| | - Chen Wang
- The Second Hospital, Jilin University, Changchun, China
| | - Yi Zhang
- The Second Hospital, Jilin University, Changchun, China
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Mizuno T, Iwai R, Moriwaki T, Nakayama Y. Application of Biosheets as Right Ventricular Outflow Tract Repair Materials in a Rat Model. Front Vet Sci 2022; 9:837319. [PMID: 35464349 PMCID: PMC9024079 DOI: 10.3389/fvets.2022.837319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 03/17/2022] [Indexed: 11/16/2022] Open
Abstract
Purposes We report the experimental use of completely autologous biomaterials (Biosheets) made by “in-body tissue architecture” that could resolve problems in artificial materials and autologous pericardium. Here, Biosheets were implanted into full-thickness right ventricular outflow tract defects in a rat model. Their feasibility as a reparative material for cardiac defects was evaluated. Methods As the evaluation of mechanical properties of the biosheets, the elastic moduli of the biosheets and RVOT-free walls of rats were examined using a tensile tester. Biosheets and expanded polytetrafluoroethylene sheet were used to repair transmural defects surgically created in the right ventricular outflow tracts of adult rat hearts (n = 9, each patch group). At 4 and 12 weeks after the operation, the hearts were resected and histologically examined. Results The strength and elastic moduli of the biosheets were 421.3 ± 140.7 g and 2919 ± 728.9 kPa, respectively, which were significantly higher than those of the native RVOT-free walls (93.5 ± 26.2 g and 778.6 ± 137.7 kPa, respectively; P < 0.005 and P < 0.001, respectively). All patches were successfully implanted into the right ventricular outflow tract-free wall of rats. Dense fibrous adhesions to the sternum on the epicardial surface were also observed in 7 of 9 rats with ePTFE grafts, whereas 2 of 9 rats with biosheets. Histologically, the vascular-constructing cells were infiltrated into Biosheets. The luminal surfaces were completely endothelialized in all groups at each time point. There was also no accumulation of inflammatory cells. Conclusions Biosheets can be formed easily and have sufficient strength and good biocompatibility as a patch for right ventricular outflow tract repair in rats. Therefore, Biosheet may be a suitable material for reconstructive surgery of the right ventricular outflow tract.
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Affiliation(s)
- Takeshi Mizuno
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
- *Correspondence: Takeshi Mizuno
| | - Ryosuke Iwai
- Research Institute of Technology, Okayama University of Science, Okayama, Japan
| | - Takeshi Moriwaki
- Department of Mechanical Science and Engineering, Faculty of Science and Technology, Hirosaki University, Aomori, Japan
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Boehm AK, Hillebrandt KH, Dziodzio T, Krenzien F, Neudecker J, Spuler S, Pratschke J, Sauer IM, Andreas MN. Tissue engineering for the diaphragm and its various therapeutic possibilities – A Systematic Review. ADVANCED THERAPEUTICS 2022. [DOI: 10.1002/adtp.202100247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- Agnes K Boehm
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
| | - Karl H Hillebrandt
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin Charitéplatz 1 Berlin 10117 Germany
| | - Tomasz Dziodzio
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin Charitéplatz 1 Berlin 10117 Germany
| | - Felix Krenzien
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin Charitéplatz 1 Berlin 10117 Germany
| | - Jens Neudecker
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
| | - Simone Spuler
- Muscle Research Unit Experimental and Clinical Research Center Charité Universitätsmedizin Berlin and Max‐Delbrück‐Centrum für Molekulare Medizin in der Helmholtz‐Gemeinschaft Lindenberger Weg 80 Berlin 13125 Germany
| | - Johann Pratschke
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin Cluster of Excellence Matters of Activity. Image Space Material funded by the Deutsche Forschungsgemeinschaft (DFG German Research Foundation) under Germany's Excellence Strategy Berlin EXC 2025 Germany
| | - Igor M Sauer
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin Cluster of Excellence Matters of Activity. Image Space Material funded by the Deutsche Forschungsgemeinschaft (DFG German Research Foundation) under Germany's Excellence Strategy Berlin EXC 2025 Germany
| | - Marco N Andreas
- Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Department of Surgery Augustenburger Platz 1 Berlin 13353 Germany
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A new method of primary engineering of esophagus using orthotopic in-body tissue architecture. J Pediatr Surg 2021; 56:1186-1191. [PMID: 33845983 DOI: 10.1016/j.jpedsurg.2021.03.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 03/12/2021] [Indexed: 11/22/2022]
Abstract
PURPOSE Tissue engineering of esophagus is required for management of long-gap esophageal atresia (LGEA). Collagenous connective tissue membranes fabricated by in-body tissue architecture (iBTA), called biosheets, can repair esophageal defects and generate tissues similar to native esophagus. However, iBTA requires second-stage surgery because of heterotopic preparation of biosheets. Our aim was to develop orthotopic iBTA for primary engineering of the esophagus by interposing a tubular mold to the esophageal defect. METHOD The cervical esophagus of six rats was transected. An acrylic tube (internal diameter 2.6 mm, length 7.0 mm) was inserted and fixed between the ends of the upper and lower esophagus, and a 3 mm-long esophageal defect was created. Four weeks later, the rats were sacrificed for histological analysis. RESULTS Postoperatively the rats could intake liquid food. After four weeks, the esophageal defects were filled with regenerated tissues. Histologically the new esophageal walls stained positive for collagen type I. The inner surfaces were covered with stratified squamous epithelium that expressed pan-cytokeratin. In only one of six rats, regeneration of muscular-like tissue was suggested by positive immunohistochemical staining for desmin. CONCLUSION Orthotopic iBTA can regenerate a substitute esophagus with esophageal epithelium and collagenous wall. This technique may be a novel treatment for esophageal atresia with gaps of various lengths including LGEA.
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Okamoto K, Umeno T, Shuto T, Wada T, Anai H, Nishida H, Nakayama Y, Miyamoto S. Three-month outcomes of aortic valve reconstruction using collagenous membranes (biosheets) produced by in-body tissue architecture in a goat model: a preliminary study. BMC Cardiovasc Disord 2021; 21:184. [PMID: 33858334 PMCID: PMC8050917 DOI: 10.1186/s12872-021-01988-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 04/07/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Autologous pericardium is widely used as a plastic material in intracardiac structures, in the pulmonary artery, and in aortic valve leaflets. For aortic valve reconstruction (AVRec) using the Ozaki procedure, it has produced excellent clinical results over a 10-year period. In-body tissue architecture (iBTA), which is based on the phenomenon of tissue encapsulation of foreign materials, can be used to prepare autologous prosthetic tissues. In this preliminary study, we examined whether biosheets can be used as valve leaflet material for glutaraldehyde-free AVRec by subchronic implantation experiments in goats and evaluated its performance compared with glutaraldehyde-treated autologous pericardium for AVRec. METHODS Biosheets were prepared by embedding molds for two months into the dorsal subcutaneous spaces of goats. Autogenic biosheets (n = 4) cut into the shape of the valve were then implanted to the aortic valve annulus of four goats for three months without glutaraldehyde treatment. Autologous pericardium (n = 4) was used in four goats as a control. Valve function was observed using echocardiography. RESULTS All goats survived the three-month study period. With biosheets, the leaflet surfaces were very smooth and, on histology, partially covered with a thin neointima (including endothelial cells). Biosheets were more thoroughly assimilated into the aortic root compared with autologous pericardium. CONCLUSIONS For the first time, biosheets were used for large animal AVRec. Biosheets could function as leaflets in the aortic position and may have the ability to assimilate into native valves.
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Affiliation(s)
- Keitaro Okamoto
- Department of Cardiovascular Surgery, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Yufu , Oita , 879-5593, Japan. .,Department of Cardiovascular Surgery, Oita University Hospital, Oita, Japan.
| | - Tadashi Umeno
- Department of Cardiovascular Surgery, Oita University Hospital, Oita, Japan
| | - Takashi Shuto
- Department of Cardiovascular Surgery, Oita University Hospital, Oita, Japan
| | - Tomoyuki Wada
- Department of Cardiovascular Surgery, Oita University Hospital, Oita, Japan
| | - Hirofumi Anai
- Clinical Engineering, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Haruto Nishida
- Department of Pathology, Oita University Hospital, Oita, Japan
| | | | - Shinji Miyamoto
- Department of Cardiovascular Surgery, Oita University Hospital, Oita, Japan
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Kawashima T, Umeno T, Terazawa T, Wada T, Shuto T, Nishida H, Anai H, Nakayama Y, Miyamoto S. Aortic valve neocuspidization with in-body tissue-engineered autologous membranes: preliminary results in a long-term goat model. Interact Cardiovasc Thorac Surg 2021; 32:969-977. [PMID: 33543242 DOI: 10.1093/icvts/ivab015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 12/03/2020] [Accepted: 12/20/2020] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVES Aortic valve neocuspidization has shown satisfactory clinical outcomes; however, autologous pericardium durability is a concern for young patients. This study applied an autologous collagenous membrane (Biosheet®), produced by in-body tissue architecture, to aortic valve neocuspidization and investigated its long-term outcome in a goat model. METHODS Moulds were embedded subcutaneously in 6 goats. After 2 months, Biosheets formed in the moulds. We performed aortic valve neocuspidization using a portion of the sheets with a thickness of 0.20-0.35 mm, measured by optical coherence tomography. Animals were subjected to echocardiography and histological evaluation at 6 months (n = 3) and 12 months (n = 3). As a control, the glutaraldehyde-treated autologous pericardium was used in 4 goats that were similarly evaluated at 12 months. RESULTS All animals survived the scheduled period. At 6 months, Biosheets maintained valve function and showed a regeneration response: fusion to the annulus, cell infiltration to the leaflets and appearance of elastic fibres at the ventricular side. After 12 months, the regenerative structure had changed little without regression, and there was negligible calcification in the 1/9 leaflets. However, all cases had one leaflet tear, resulting in moderate-to-severe aortic regurgitation. In the pericardium group, three-fourths of the animals experienced moderate-to-severe aortic regurgitation with a high rate of calcification (9/12 leaflets). CONCLUSIONS Biosheets may have regeneration potential and anti-calcification properties in contrast to autologous pericardium. However, in order to obtain reliable outcome, further improvements are required to strictly control and optimize its thickness, density and homogeneity.
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Affiliation(s)
- Takayuki Kawashima
- Department of Cardiovascular Surgery, Oita University, Yufu, Oita, Japan
| | - Tadashi Umeno
- Department of Cardiovascular Surgery, Oita University, Yufu, Oita, Japan
| | - Takeshi Terazawa
- Department of Mechanical Systems Engineering, Aichi University of Technology, Gamagori, Aichi, Japan
| | - Tomoyuki Wada
- Department of Cardiovascular Surgery, Oita University, Yufu, Oita, Japan
| | - Takashi Shuto
- Department of Cardiovascular Surgery, Oita University, Yufu, Oita, Japan
| | - Haruto Nishida
- Department of Diagnostic Pathology, Oita University, Yufu, Oita, Japan
| | - Hirofumi Anai
- Clinical Engineering Research Center, Oita University, Yufu, Oita, Japan
| | | | - Shinji Miyamoto
- Department of Cardiovascular Surgery, Oita University, Yufu, Oita, Japan
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Iimori Y, Iwai R, Nagatani K, Inoue Y, Funayama-Iwai M, Okamoto M, Nakata M, Mie K, Nishida H, Nakayama Y, Akiyoshi H. Urinary bladder reconstruction using autologous collagenous connective tissue membrane "Biosheet®" induced by in-body tissue architecture: A pilot study. Regen Ther 2020; 15:274-280. [PMID: 33426229 PMCID: PMC7770416 DOI: 10.1016/j.reth.2020.10.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/15/2020] [Accepted: 10/29/2020] [Indexed: 11/20/2022] Open
Abstract
INTRODUCTION In-body tissue architecture (iBTA) technology, based on cell-free tissue engineering, can produces collagenous tissues for implantation by subcutaneous embedding a designed mold. The aim of this study was to evaluate the biocompatibility of iBTA-induced "Biosheet®" collagenous sheets, as scaffold materials for bladder reconstruction. METHODS Canine Biosheet® implants were prepared by embedding molds into subcutaneous pouches in beagles for 8 weeks. A part of canine bladder wall was excised (2 × 2 cm) and repaired by patching the same sized autologous Biosheet®. The Biosheet® implants were harvested 4 weeks (n = 1) and 12 weeks (n = 3) after the implantation and evaluated histologically. RESULTS No disruption of the patched Biosheet® implants or urinary leakage into the peritoneal cavity was observed during the entire observation periods. There were no signs of chronic inflammation or Biosheet® rejection. The urine-contacting surface of luminal surface of the Biosheet® was covered with a multicellular layer of urothelium cells 4 weeks after implantation. α-SMA-positive muscle cells were observed at the margin of the Biosheet® implants at 12 weeks after the implantation. In addition, in the center of the Biosheet® implants, the formation of microvessels stained as α-SMA-positive was observed. CONCLUSION Biosheet® implants have biocompatibility as a scaffold for bladder reconstruction, indicating that they may be applicable for full-thickness bladder wall substitution. Further studies are required for definitive evaluation as a scaffold for bladder reconstruction.
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Affiliation(s)
- Yasumasa Iimori
- Laboratory of Veterinary Surgery, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano-shi, Osaka 598-8531, Japan
| | - Ryosuke Iwai
- Research Institute of Technology, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama, 700-0005, Japan
| | - Kengo Nagatani
- Laboratory of Veterinary Surgery, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano-shi, Osaka 598-8531, Japan
| | - Yuka Inoue
- Laboratory of Veterinary Surgery, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano-shi, Osaka 598-8531, Japan
| | - Marina Funayama-Iwai
- Laboratory of Veterinary Surgery, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano-shi, Osaka 598-8531, Japan
| | - Mari Okamoto
- Laboratory of Veterinary Surgery, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano-shi, Osaka 598-8531, Japan
| | - Mio Nakata
- Laboratory of Veterinary Surgery, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano-shi, Osaka 598-8531, Japan
| | - Keiichiro Mie
- Laboratory of Veterinary Surgery, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano-shi, Osaka 598-8531, Japan
| | - Hidetaka Nishida
- Laboratory of Veterinary Surgery, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano-shi, Osaka 598-8531, Japan
| | | | - Hideo Akiyoshi
- Laboratory of Veterinary Surgery, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano-shi, Osaka 598-8531, Japan
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Navaei T, Milan PB, Samadikuchaksaraei A, Davari HR, Hardy JG, Mozafari M. Design and fabrication of polycaprolactone/gelatin composite scaffolds for diaphragmatic muscle reconstruction. J Tissue Eng Regen Med 2020; 15:78-87. [PMID: 33175464 DOI: 10.1002/term.3151] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 10/04/2020] [Accepted: 10/20/2020] [Indexed: 11/08/2022]
Abstract
Diaphragmatic wall defects caused by congenital disorders or disease remain a major challenge for physicians worldwide. Polymeric patches have been extensively explored within research laboratories and the clinic for soft tissue and diaphragm reconstruction. However, patch usage may be associated with allergic reaction, infection, granulation, and recurrence of the hernia. In this study, we designed and fabricated a porous scaffold using a combination of 3D printing and freeze-drying techniques. A 3D printed polycaprolactone (PCL) mesh was used to reinforcegelatin scaffolds, representing an advantage over previously reported examples since it provides mechanical strength and flexibility. In vitro studies showed that adherent cells were anchorage-dependent and grew as a monolayer attached to the scaffolds. Microscopic observations indicated better cell attachments for the scaffolds with higher gelatin content as compared with the PCL control samples. Tensile testing demonstrated the mechanical strength of samples was significantly greater than adult diaphragm tissue. The biocompatibility of the specimens was investigated in vivo using a subcutaneous implantation method in Bagg albino adult mice for 20 days, with the results indicating superior cellular behavior and attachment on scaffolds containing gelatin in comparison to pure PCL scaffolds, suggesting that the porous PCL/gelatin scaffolds have potential as biodegradable and flexible constructs for diaphragm reconstruction.
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Affiliation(s)
- Tina Navaei
- Cellular and Molecular Research Center (CMRC), Iran University of Medical Sciences (IUMS), Tehran, Iran.,Department of Tissue Engineering & Regenerative Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Peiman Brouki Milan
- Cellular and Molecular Research Center (CMRC), Iran University of Medical Sciences (IUMS), Tehran, Iran.,Department of Tissue Engineering & Regenerative Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Ali Samadikuchaksaraei
- Cellular and Molecular Research Center (CMRC), Iran University of Medical Sciences (IUMS), Tehran, Iran.,Department of Tissue Engineering & Regenerative Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Hamid Reza Davari
- Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran
| | - John G Hardy
- Department of Chemistry, Lancaster University, Lancaster, UK.,Materials Science Institute, Lancaster University, Lancaster, UK
| | - Masoud Mozafari
- Cellular and Molecular Research Center (CMRC), Iran University of Medical Sciences (IUMS), Tehran, Iran.,Department of Tissue Engineering & Regenerative Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
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Mechanical characterization of an in-body tissue-engineered autologous collagenous sheet for application as an aortic valve reconstruction material. J Biomech 2020; 99:109528. [DOI: 10.1016/j.jbiomech.2019.109528] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 10/12/2019] [Accepted: 11/05/2019] [Indexed: 11/22/2022]
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Komura M, Komura H, Satake R, Suzuki K, Yonekawa H, Ikebukuro K, Komuro H, Hoshi K, Takato T, Moriwaki T, Nakayama Y. Fabrication of an anatomy-mimicking BIO-AIR-TUBE with engineered cartilage. Regen Ther 2019; 11:176-181. [PMID: 31453272 PMCID: PMC6700413 DOI: 10.1016/j.reth.2019.07.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 07/02/2019] [Accepted: 07/17/2019] [Indexed: 12/03/2022] Open
Abstract
Introduction We devised a strategy for the fabrication of an ‘anatomy-mimicking’ cylinder-type engineered trachea combined with cartilage engineering. The engineered BIOTUBEs are used to support the architecture of the body tissue, for long-segment trachea (>5 cm) with carinal reconstruction. The aim of the present study was to fabricate an anatomy-mimicking cylinder-type regenerative airway, and investigate its applicability in a rabbit model. Methods Collagen sponge rings (diameter: 6 mm) were arranged on a silicon tube (diameter: 6 mm) at 2-mm intervals. Chondrocytes from the auricular cartilage were seeded onto collagen sponges immediately prior to implantation in an autologous manner. These constructs were embedded in dorsal subcutaneous pouches of rabbits. One month after implantation, the constructs were retrieved for histological examination. In addition, cervical tracheal sleeve resection was performed, and these engineered constructs were implanted into defective airways through end-to-end anastomosis. Results One month after implantation, the engineered constructs exhibited similar rigidity and flexibility to those observed with the native trachea. Through histological examination, the constructs showed an anatomy-mimicking tracheal architecture. In addition, the engineered constructs could be anastomosed to the native trachea without air leakage. Conclusion The present study provides the possibility of generating anatomy-mimicking cylinder-type airways, termed BIO-AIR-TUBEs, that engineer cartilage in an in-vivo culture system. This approach involves the use of BIOTUBEs formed via in-body tissue architecture technology. Therefore, the BIO-AIR-TUBE may be useful as the basic architecture of artificial airways.
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Affiliation(s)
- Makoto Komura
- Department of Pediatric Surgery, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.,Department of Pediatric Surgery, Saitama Medical University, 38 Morohongo, Moroyama-cho, Iruma-gun, Saitama 350-0495, Japan
| | - Hiroko Komura
- Department of Pediatric Surgery, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Ryosuke Satake
- Department of Pediatric Surgery, Saitama Medical University, 38 Morohongo, Moroyama-cho, Iruma-gun, Saitama 350-0495, Japan
| | - Keisuke Suzuki
- Department of Pediatric Surgery, Saitama Medical University, 38 Morohongo, Moroyama-cho, Iruma-gun, Saitama 350-0495, Japan
| | - Hironobu Yonekawa
- Department of Pediatric Surgery, Saitama Medical University, 38 Morohongo, Moroyama-cho, Iruma-gun, Saitama 350-0495, Japan
| | - Kenichi Ikebukuro
- Department of Pediatric Surgery, Saitama Medical University, 38 Morohongo, Moroyama-cho, Iruma-gun, Saitama 350-0495, Japan
| | - Hiroaki Komuro
- Department of Pediatric Surgery, Saitama Medical University, 38 Morohongo, Moroyama-cho, Iruma-gun, Saitama 350-0495, Japan
| | - Kazuto Hoshi
- Department of Tissue Engineering, Tokyo University Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Tsuyoshi Takato
- Department of Tissue Engineering, Tokyo University Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Takeshi Moriwaki
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka 565-8565, Japan
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iBTA-induced bovine Biosheet for repair of abdominal wall defects in a beagle model: proof of concept. Hernia 2018; 22:1033-1039. [PMID: 30022282 DOI: 10.1007/s10029-018-1799-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 07/13/2018] [Indexed: 12/21/2022]
Abstract
INTRODUCTION We evaluated the usefulness of xeno-Biosheets, an in-body tissue architecture-induced bovine collagenous sheet, as repair materials for abdominal wall defects in a beagle model. MATERIALS AND METHODS Biosheets were prepared by embedding cylindrical molds into subcutaneous pouches of three Holstein cows for 2-3 months and stored in 70% ethanol. The Biosheets were 0.5 mm thick, cut into 2 cm × 2 cm, and implanted to replace defects of the same size in the abdominal wall of nine beagles. The abdominal wall and Biosheets were harvested and subjected to histological evaluation at 1, 3, and 5 months after implantation (n = 3 each). RESULTS The Biosheet and bovine pericardiac patch (control) were not stressed during the suture operation and did not split, and patches were easily implanted on defective wounds. After implantation, the patch did not fall off and was not perforated, and healing was observed nacroscopically in all cases. During the first month of implantation, accumulation of inflammatory cells was observed along with decomposition around the Biosheet. Decomposition was almost complete after 3 months, and the Biosheet was replaced by autologous collagenous connective tissue without rejection. After 5 months, the abdominal wall muscle elongated from the periphery of the newly formed collagen layer and the peritoneum was formed on the peritoneal cavity surface. Regeneration of almost all layers of the abdominal wall was observed. However, almost all pericardium patches were remained even at 5 months with inflammation. CONCLUSION Bovine Biosheets requiring no special post-treatment can be useful as off-the-shelf materials for abdominal wall repair.
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