1
|
Giol ED, Van Vlierberghe S, Unger RE, Kersemans K, de Vos F, Kirkpatrick CJ, Dubruel P. Biomimetic strategy towards gelatin coatings on PET. Effect of protocol on coating stability and cell-interactive properties. J Mater Chem B 2019; 7:1258-1269. [PMID: 32255165 DOI: 10.1039/c8tb02676a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gelatin-modified poly(ethylene terephthalate) (PET) surfaces have been previously realized via an intermediate dopamine coating procedure that resulted in surfaces with superior haemocompatibility compared to unfunctionalized PET. The present study addresses the biocompatibility assessment of these coated PET surfaces. In this context, the stability of the gelatin coating upon exposure to physiological conditions and its cell-interactive properties were investigated. The proposed gelatin-dopamine-PET surfaces showed an increased protein coating stability up to 24 days and promoted the attachment and spreading of both endothelial cells (ECs) and smooth muscle cells (SMCs). In parallel, physisorbed gelatin coatings exhibited similar cell-interactive properties, albeit temporarily, as the coating delaminated within 1 week after cell seeding. Furthermore, no or only minimal immunogenic or inflammatory responses were observed during in vitro cytotoxicity and endotoxicity assessment for all gelatin-modified PET surfaces evaluated. Overall, the combined enhanced biocompatibility reported herein together with the previously proven haemocompatibility show the potential of the gelatin-dopamine-PET surfaces to function as vascular graft candidates.
Collapse
Affiliation(s)
- Elena Diana Giol
- Polymer Chemistry and Biomaterials Research (PBM) Group, Centre of Macromolecular Chemistry, Ghent University (UGent), Krijgslaan 281, S4-bis, B-9000, Ghent, Belgium.
| | | | | | | | | | | | | |
Collapse
|
2
|
Giol ED, Van Vlierberghe S, Unger RE, Schaubroeck D, Ottevaere H, Thienpont H, Kirkpatrick CJ, Dubruel P. Endothelialization and Anticoagulation Potential of Surface-Modified PET Intended for Vascular Applications. Macromol Biosci 2018; 18:e1800125. [DOI: 10.1002/mabi.201800125] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 05/07/2018] [Indexed: 01/17/2023]
Affiliation(s)
- Elena Diana Giol
- Polymer Chemistry and Biomaterials Research (PBM) Group; Centre of Macromolecular Chemistry; Ghent University; Krijgslaan 281, S4-bis B-9000 Belgium
| | - Sandra Van Vlierberghe
- Polymer Chemistry and Biomaterials Research (PBM) Group; Centre of Macromolecular Chemistry; Ghent University; Krijgslaan 281, S4-bis B-9000 Belgium
- Brussels Photonics (B-PHOT); Vrije Universiteit Brussel; Pleinlaan 2 B-1050 Belgium
| | - Ronald E. Unger
- REPAIR LAB; University Medical Center of the Johannes Gutenberg University Mainz; Langenbeckstraat 1 55131 Germany
| | - David Schaubroeck
- Centre of Microsystems Technology (CMST); imec and Ghent University; Technologiepark-Zwijnaarde15 B-9052 Belgium
| | - Heidi Ottevaere
- Brussels Photonics (B-PHOT); Vrije Universiteit Brussel; Pleinlaan 2 B-1050 Belgium
| | - Hugo Thienpont
- Brussels Photonics (B-PHOT); Vrije Universiteit Brussel; Pleinlaan 2 B-1050 Belgium
| | - Charles James Kirkpatrick
- REPAIR LAB; University Medical Center of the Johannes Gutenberg University Mainz; Langenbeckstraat 1 55131 Germany
| | - Peter Dubruel
- Polymer Chemistry and Biomaterials Research (PBM) Group; Centre of Macromolecular Chemistry; Ghent University; Krijgslaan 281, S4-bis B-9000 Belgium
| |
Collapse
|
3
|
Giol ED, Schaubroeck D, Kersemans K, De Vos F, Van Vlierberghe S, Dubruel P. Bio-inspired surface modification of PET for cardiovascular applications: Case study of gelatin. Colloids Surf B Biointerfaces 2015; 134:113-21. [DOI: 10.1016/j.colsurfb.2015.04.035] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 04/08/2015] [Accepted: 04/14/2015] [Indexed: 10/23/2022]
|
4
|
G N, Tan A, Gundogan B, Farhatnia Y, Nayyer L, Mahdibeiraghdar S, Rajadas J, De Coppi P, Davies AH, Seifalian AM. Tissue engineering vascular grafts a fortiori: looking back and going forward. Expert Opin Biol Ther 2014; 15:231-44. [PMID: 25427995 DOI: 10.1517/14712598.2015.980234] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Cardiovascular diseases such as coronary heart disease often necessitate the surgical repair using conduits. Although autografts still remain the gold standard, the inconvenience of harvesting and/or insufficient availability in patients with atherosclerotic disease has given impetus to look into alternative sources for vascular grafts. AREAS COVERED There are four main techniques to produce tissue-engineered vascular grafts (TEVGs): i) biodegradable synthetic scaffolds; ii) gel-based scaffolds; iii) decellularised scaffolds and iv) self-assembled cell-sheet-based techniques. The first three techniques can be grouped together as scaffold-guided approach as it involves the use of a construct to function as a supportive framework for the vascular graft. The most significant advantages of TEVGs are that it possesses the ability to grow, remodel and respond to environmental factors. Cell sources for TEVGs include mature somatic cells, stem cells, adult progenitor cells and pluripotent stem cells. EXPERT OPINION TEVG holds great promise with advances in nanotechnology, coupled with important refinements in tissue engineering and decellularisation techniques. This will undoubtedly be an important milestone for cardiovascular medicine when it is eventually translated to clinical use.
Collapse
Affiliation(s)
- Natasha G
- University College London (UCL), Centre for Nanotechnology and Regenerative Medicine, UCL Division of Surgery and Interventional Science, Research Department of Nanotechnology , London NW3 2QG , UK +44 207 830 2901 ;
| | | | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Sripriya R, Kumar R, Balaji S, Senthil Kumar M, Sehgal P. Characterizations of polyanionic collagen prepared by linking additional carboxylic groups. REACT FUNCT POLYM 2011. [DOI: 10.1016/j.reactfunctpolym.2010.11.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
6
|
Douglas T, Haugen HJ. Coating of polyurethane scaffolds with collagen: comparison of coating and cross-linking techniques. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2008; 19:2713-2719. [PMID: 18283534 DOI: 10.1007/s10856-008-3393-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2007] [Accepted: 01/22/2008] [Indexed: 05/25/2023]
Abstract
Collagen has been coated successfully onto numerous hydrophilic polymer scaffolds to improve cell adhesion. Due to the hydrophobic nature of thermoplastic polyurethane (TPU), coating with aqueous collagen solution is problematic for such scaffolds. This study facilitated the coating of TPU with collagen and compared cross-linking and coating techniques. Three different cross-linking methods were compared. Both thermal and glutaraldehyde methods showed proof of cross-linking; however glutaraldehyde seemed to be superior to the other methods. The use of human urine as a wetting agent and the chemical glutaraldehyde had no effect on a cytotoxicity test performed by means of a WST-1 assay with a fibroblastic cell line. Three different coating techniques for porous TPU scaffolds were also investigated: ultrasound, pressurized air and injection. Of these, injection performed best. This method facilitated a coating of 100% of the porous scaffolds examined, which was verified by staining, FTIR and SEM.
Collapse
Affiliation(s)
- Timothy Douglas
- Institute of Material Science, Max Bergmann Center of Biomaterials, Technische Universität Dresden, Germany.
| | | |
Collapse
|
7
|
Sarkar S, Sales KM, Hamilton G, Seifalian AM. Addressing thrombogenicity in vascular graft construction. J Biomed Mater Res B Appl Biomater 2007; 82:100-8. [PMID: 17078085 DOI: 10.1002/jbm.b.30710] [Citation(s) in RCA: 123] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Thrombosis is a major cause of poor patency in synthetic vascular grafts for small diameter vessel (< 6 mm) bypass. Arteries have a host of structural mechanisms by which they prevent triggering of platelet activation and the clotting cascade. Many of these are present in vascular endothelial cells. These mechanisms act together with perpetual feedback at different levels, providing a constantly fine-tuned non-thrombogenic environment. The arterial wall anatomy also serves to promote thrombosis as a healing mechanism when it has been severely injured. Surface modification of synthetic graft surfaces to attenuate the coagulation cascade has reduced thrombosis levels and improved patency in vitro and in animal models. Success in this endeavor is critically dependent on the methods used to modify the surface. Platelets adhere to positively charged surfaces due to their own negative charge. They also preferentially attach to hydrophobic surfaces. Therefore synthetic graft development is concerned with hydrophilic materials with negative surface charge. However, fibrinogen has both hydrophilic and hydrophobic binding sites-amphiphilic materials reduce its adhesion and subsequent platelet activation. The self-endothelializing synthetic graft is an attractive proposition as a confluent endothelial layer incorporates many of the anti-thrombogenic properties of arteries. Surface modification to promote this has shown good results in animal models. The difficulties experienced in achieving spontaneous endothelialisation in humans have lead to the investigation of pre-implantation in vitro endothelial cell seeding. These approaches ultimately aim to result in novel synthetic grafts which are anti-thrombogenic and hence suitable for coronary and distal infrainguinal bypass.
Collapse
Affiliation(s)
- Sandip Sarkar
- Biomaterials and Tissue Engineering Centre (BTEC), Academic Division of Surgical and Interventional Sciences, University College London, London, United Kingdom
| | | | | | | |
Collapse
|
8
|
Zhang Z, Liu W, Li D, Li G. Physicochemical properties of succinylated calfskin pepsin-solubilized collagen. Biosci Biotechnol Biochem 2007; 71:2057-60. [PMID: 17690454 DOI: 10.1271/bbb.70055] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Some physicochemical properties of calfskin pepsin-solubilized collagen (PSC) and succinylated PSC (SPSC) were compared. The amino acid profile remained significantly unchanged. Sodium dodecylsulphate-polyacrylamide gel electrophoresis showed that subunits of SPSC migrated less than those of PSC. The denaturation temperatures of PSC and SPSC were 38.4 degrees C and 34.7 degrees C respectively. Succinylation slightly altered the triple-helical conformation of collagen, as determined by circular dichroism.
Collapse
Affiliation(s)
- Zhongkai Zhang
- The Key Laboratory of Leather Chemistry and Engineering of the Ministry of Education, Sichuan University, Chengdu, PR China
| | | | | | | |
Collapse
|
9
|
Zhang Z, Briana S, Douville Y, Zhao H, Gilbert N. Transmural communication at a subcellular level may play a critical role in the fallout based-endothelialization of dacron vascular prostheses in canine. J Biomed Mater Res A 2007; 81:877-87. [PMID: 17236220 DOI: 10.1002/jbm.a.31124] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A microporous and permeable wall is important for the healing of vascular prostheses, however, the significance of its permeability to soluble substances at subcellular level has not been demonstrated. Polyester arterial prostheses were prepared in such a way that each of them contained three segments, of which at least one segment was impervious and another segment was permeable to water but impermeable to cells. Twenty graft segments were implanted in 7 dogs as a thoraco-abdominal bypass for 2 months. The prostheses were then harvested, photographed, and treated for histological and morphological studies. The low porosity graft capped by two thrombogenic segments was fully endothelialized, proving the fallout mechanism. The striking contrast with its impermeable counterpart demonstrated that a wall permeable to small substances of subcellular level was critical for the endothelial healing. A wide range of water permeabilities did not reveal advantages of high water permeable segments over low water permeable ones. Endothelial ingrowth from anastomoses was also jeopardized in the absence of wall permeability. In conclusion, transmural communication at a subcellular level may have played a critical role in the fallout based-endothelialization of arterial prostheses in canine. This highlights the potential function of perigraft cytokines and growth factors in endothelial healing.
Collapse
Affiliation(s)
- Ze Zhang
- Department of Surgery, Laval University, The Research Center of Saint-François d'Assise Hospital, CHUQ, Quebec City, Quebec, Canada.
| | | | | | | | | |
Collapse
|
10
|
Ueberrueck T, Tautenhahn J, Meyer L, Kaufmann O, Lippert H, Gastinger I, Wahlers T. Comparison of the ovine and porcine animal models for biocompatibility testing of vascular prostheses. J Surg Res 2005; 124:305-11. [PMID: 15820262 DOI: 10.1016/j.jss.2004.10.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2004] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Evaluation of the pig and sheep models for biocompatibility investigations of vascular prostheses (VP). DESIGN Comparative analysis of animal experimental investigations involving two different animal models. MATERIALS AND METHODS Commercially available polyester vascular prostheses (PET-VP) were implanted into two different animal models (infrarenal porcine aorta and ovine carotid artery). The costs, surgical handling, patency rate, and healing on the basis of macroscopic, microscopic, and immunohistochemical criteria were analyzed over a period of 3 months. RESULTS Handling and operating times (63 +/- 10 versus 76 +/- 16 min; P = 0.125) did not differ significantly. The cost of the two animal models was comparable. Integration of the VP was complete in the sheep model, but varied in the pig model (two complete, four incomplete). Complete endothelialization of all VPs was observed in the pig, which contrasted with the sheep with complete (circular) endothelialization only in the region of the anastomosis. The thickness of neointima in the region of the anastomosis differed insignificantly; immunohistochemically, only periprosthetic Ki67 was significantly reduced (28.7 +/- 9.9 versus 6 +/- 0.9%; P = 0.002) in the sheep. CONCLUSIONS In the porcine model, extremely good endothelialization of the VP was observed, with formation of a rapid neointimal hyperplasia. The ovine model was characterized by the fact that postoperative follow-up investigations were easy to perform. Complete endothelialization was not observed.
Collapse
Affiliation(s)
- Torsten Ueberrueck
- Freidrich-Schiller-University, Department of Cardiothoracic and Vascular Surgery, Erlanger Allee 101, 07747 Jena, Germany.
| | | | | | | | | | | | | |
Collapse
|
11
|
Orban JM, Wilson LB, Kofroth JA, El-Kurdi MS, Maul TM, Vorp DA. Crosslinking of collagen gels by transglutaminase. J Biomed Mater Res A 2004; 68:756-62. [PMID: 14986330 DOI: 10.1002/jbm.a.20110] [Citation(s) in RCA: 187] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Collagen is commonly used as a tissue-engineering scaffold, yet its in vivo applications are limited by a deficiency in mechanical strength. The purpose of this work was to explore the utilization of a unique enzymatic crosslinking procedure aimed at improving the mechanical properties of collagen-based scaffold materials. Type I bovine collagen gel was crosslinked by transglutaminase, which selectively mediates the chemical reaction between glutamine and lysine residues on adjacent protein fibers, thus providing covalent amide bonds that serve to reinforce the three-dimensional matrix. The degree of crosslinking was verified by thermal analysis and amine group content. The denaturation temperature of crosslinked collagen reached a maximum of 66 +/- 1 degrees C. The chemical reaction was confirmed to be noncytotoxic with respect to bone marrow stromal cells acquired from New Zealand White rabbits. Tube-shaped cellular constructs fashioned from crosslinked collagen and bone marrow stromal cells were found to have burst pressures significantly higher than their noncrosslinked analogs (71 +/- 4 mmHg vs. 46 +/- 3 mmHg; p < 0.01). Thus, the transglutaminase mediated reaction served to successfully strengthen collagen gels while remaining benign toward cells.
Collapse
Affiliation(s)
- Janine M Orban
- Department of Surgery, University of Pittsburgh, Room 236, Cellomics Bldg., McGowan Institute for Regenerative Medicine, 100 Technology Drive, Pittsburgh, Pennsylvania 15219, USA
| | | | | | | | | | | |
Collapse
|
12
|
Goo HC, Hwang YS, Choi YR, Cho HN, Suh H. Development of collagenase-resistant collagen and its interaction with adult human dermal fibroblasts. Biomaterials 2004; 24:5099-113. [PMID: 14568426 DOI: 10.1016/s0142-9612(03)00431-9] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Collagen is regarded as one of the most useful biomaterials. The excellent biocompatibility and safety due to its biological characteristics, such as biodegradability and weak antigenecity, made collagen the primary source in biomedical application. Collagen has been widely used in the crosslinked form to extend the durability of collagen. The chemical treatment influences the structural integrity of collagen molecule resulting in the loss of triple helical characteristic. The structural characteristic of collagen is importantly related to its biological function for the interaction with cell. In this study, structural stability of collagen was enhanced thought EGCG treatment, resulting in high resistance against degradation by bacterial collagenase and MMP-1, which is confirmed by collagen zymography. The triple helical structure of EGCG-treated collagen could be maintained at 37 degrees C in comparison with collagen, which confirmed by CD spectra analysis, and EGCG-treated collagen showed high free-radical scavenging activity. Also, with fibroblasts culture on EGCG-treated collagen, the structural stability of EGCG-treated collagen provided a favorable support for cell function in cell adhesion and actin filament expression. These observations underscore the need for native, triple helical collagen conformation as a prerequisite for integrin-mediated cell adhesion and functions. According to this experiment, EGCG-treated collagen assumes to provide a practical benefit to resist the degradation by collagenase retaining its structural characteristic, and can be a suitable biomaterial for biomedical application.
Collapse
Affiliation(s)
- Hyun Chul Goo
- Department of Medical Engineering, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-ku, Seoul, South Korea
| | | | | | | | | |
Collapse
|
13
|
Kumar TR, Shanmugasundaram N, Babu M. Biocompatible collagen scaffolds from a human amniotic membrane: physicochemical and in vitro culture characteristics. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2004; 14:689-706. [PMID: 12903737 DOI: 10.1163/156856203322274941] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A reconstituted collagen membrane from human amnion has been investigated as a source of collagen matrix, which could be used as a substratum for culturing human fibroblasts. The suitability of pepsin-solubilized reconstituted human amniotic membrane, before and after cross-linking with chitosan, as a dermal matrix for culturing fibroblast was assessed by morphologic, physicochemical, cytotoxic and histochemical methods. Measurement of thermodynamic behaviour, by differential scanning calorimetric (DSC) and thermogravimetric analysis (TGA), and tensile strength suggested that the cross-linked membrane had sufficient elasticity to serve as an efficient dermal substrate for in vitro culture of fibroblasts. Fibroblasts cultured on the chitosan cross-linked collagen membrane had good adherence, retaining their morphology as indicated by microscopic analysis. Proliferation of fibroblasts. observed on this membrane affirms its non-toxic nature. These results support the application of reconstituted human amniotic collagen membrane as collagenous scaffolds to culture fibroblasts in vitro.
Collapse
Affiliation(s)
- T R Kumar
- Biomaterials Division, Central Leather Research Institute, Adyar, Chennai 600 020, Tamil Nadu, India
| | | | | |
Collapse
|
14
|
Goissis G, Suzigan S, Parreira DR, Maniglia JV, Braile DM, Raymundo S. Preparation and characterization of collagen-elastin matrices from blood vessels intended as small diameter vascular grafts. Artif Organs 2000; 24:217-23. [PMID: 10759645 DOI: 10.1046/j.1525-1594.2000.06537.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This study describes the selective removal of cell and cell residues from small and large diameter blood vessels for the preparation of tubular collagen:elastin matrices intended for small diameter vascular prosthesis. The results showed that total or partially devitalized collagen:elastin matrices may be conveniently prepared without denaturation of the collagen:elastin matrix with a high degree of preservation of the proteins. The efficiency of cell removal and the extent collagen and elastic fiber preservation were dependent on the segment and the type of blood vessel under study, with arteries characterized by a higher susceptibility of cell removal and better preservation of the collagen-elastin matrix.
Collapse
Affiliation(s)
- G Goissis
- Department of Chemistry and Molecular Physics, Institute of Chemistry of São Carlos, University of São Paulo;Faculty of Medicine São José do Rio Preto, São Paulo, Brazil.
| | | | | | | | | | | |
Collapse
|