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Ouellette MÈ, Bérubé JC, Bourget JM, Vallée M, Bossé Y, Fradette J. Linoleic acid supplementation of cell culture media influences the phospholipid and lipid profiles of human reconstructed adipose tissue. PLoS One 2019; 14:e0224228. [PMID: 31639818 PMCID: PMC6805161 DOI: 10.1371/journal.pone.0224228] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 10/08/2019] [Indexed: 01/09/2023] Open
Abstract
Reconstructed human adipose tissues represent novel tools available to perform in vitro pharmaco-toxicological studies. We used adipose-derived human stromal/stem cells to reconstruct, using tissue engineering techniques, such an adipose tridimensional model. To determine to what extent the in vitro model is representative of its native counterpart, adipogenic differentiation, triglycerides accumulation and phospholipids profiles were analysed. Ingenuity Pathway Analysis software revealed pathways enriched with differentially-expressed genes between native and reconstructed human adipose tissues. Interestingly, genes related to fatty acid metabolism were downregulated in vitro, which could be explained in part by the insufficient amount of essential fatty acids provided by the fetal calf serum used for the culture. Indeed, the lipid profile of the reconstructed human adipose tissues indicated a particular lack of linoleic acid, which could interfere with physiological cell processes such as membrane trafficking, signaling and inflammatory responses. Supplementation in the culture medium was able to influence the lipid profile of the reconstructed human adipose tissues. This study demonstrates the possibility to directly modulate the phospholipid profile of reconstructed human adipose tissues. This reinforces its use as a relevant physiological or pathological model for further pharmacological and metabolic studies of human adipose tissue functions.
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Affiliation(s)
- Marie-Ève Ouellette
- Centre de Recherche en Organogenèse Expérimentale de l'Université Laval/LOEX, Division of Regenerative Medicine, CHU de Québec -Université Laval Research Center, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, Canada
| | - Jean-Christophe Bérubé
- Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada
| | - Jean-Michel Bourget
- Centre de Recherche en Organogenèse Expérimentale de l'Université Laval/LOEX, Division of Regenerative Medicine, CHU de Québec -Université Laval Research Center, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, Canada
| | - Maud Vallée
- Centre de Recherche en Organogenèse Expérimentale de l'Université Laval/LOEX, Division of Regenerative Medicine, CHU de Québec -Université Laval Research Center, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, Canada
| | - Yohan Bossé
- Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada
- Department of Molecular Medicine, Faculty of Medicine, Université Laval, Québec, Canada
| | - Julie Fradette
- Centre de Recherche en Organogenèse Expérimentale de l'Université Laval/LOEX, Division of Regenerative Medicine, CHU de Québec -Université Laval Research Center, Québec, QC, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, Canada
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2
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Kérourédan O, Bourget JM, Rémy M, Crauste-Manciet S, Kalisky J, Catros S, Thébaud NB, Devillard R. Micropatterning of endothelial cells to create a capillary-like network with defined architecture by laser-assisted bioprinting. J Mater Sci Mater Med 2019; 30:28. [PMID: 30747358 DOI: 10.1007/s10856-019-6230-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 02/01/2019] [Indexed: 06/09/2023]
Abstract
Development of a microvasculature into tissue-engineered bone substitutes represents a current challenge. Seeding of endothelial cells in an appropriate environment can give rise to a capillary-like network to enhance prevascularization of bone substitutes. Advances in biofabrication techniques, such as bioprinting, could allow to precisely define a pattern of endothelial cells onto a biomaterial suitable for in vivo applications. The aim of this study was to produce a microvascular network following a defined pattern and preserve it while preparing the surface to print another layer of endothelial cells. We first optimise the bioink cell concentration and laser printing parameters and then develop a method to allow endothelial cells to survive between two collagen layers. Laser-assisted bioprinting (LAB) was used to pattern lines of tdTomato-labeled endothelial cells cocultured with mesenchymal stem cells seeded onto a collagen hydrogel. Formation of capillary-like structures was dependent on a sufficient local density of endothelial cells. Overlay of the pattern with collagen I hydrogel containing vascular endothelial growth factor (VEGF) allowed capillary-like structures formation and preservation of the printed pattern over time. Results indicate that laser-assisted bioprinting is a valuable technique to pre-organize endothelial cells into high cell density pattern in order to create a vascular network with defined architecture in tissue-engineered constructs based on collagen hydrogel.
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Affiliation(s)
- Olivia Kérourédan
- INSERM, Bioingénierie Tissulaire, U1026, 146 rue Léo Saignat, F-33076, Bordeaux, France.
- Université de Bordeaux, Bioingénierie Tissulaire, U1026, 146 rue Léo Saignat, F-33076, Bordeaux, France.
- CHU de Bordeaux, Services d'Odontologie et de Santé Buccale, Place Amélie Raba Léon, F-33076, Bordeaux, France.
| | - Jean-Michel Bourget
- INSERM, Bioingénierie Tissulaire, U1026, 146 rue Léo Saignat, F-33076, Bordeaux, France
- Energie, matériaux et télécommunication, Institut National de Recherche Scientifique, Varenne, QC, Canada
| | - Murielle Rémy
- INSERM, Bioingénierie Tissulaire, U1026, 146 rue Léo Saignat, F-33076, Bordeaux, France
- Université de Bordeaux, Bioingénierie Tissulaire, U1026, 146 rue Léo Saignat, F-33076, Bordeaux, France
| | - Sylvie Crauste-Manciet
- Université de Bordeaux, ARNA Laboratory, team ChemBioPharm, U1212 INSERM - UMR 5320 CNRS, 146 rue Léo Saignat, F-33076, Bordeaux, France
- CHU de Bordeaux, Pharmacie du Groupe Hospitalier Sud, Avenue de Magellan, F-33604, Pessac, France
| | - Jérôme Kalisky
- INSERM, Bioingénierie Tissulaire, U1026, 146 rue Léo Saignat, F-33076, Bordeaux, France
- Université de Bordeaux, Bioingénierie Tissulaire, U1026, 146 rue Léo Saignat, F-33076, Bordeaux, France
| | - Sylvain Catros
- INSERM, Bioingénierie Tissulaire, U1026, 146 rue Léo Saignat, F-33076, Bordeaux, France
- Université de Bordeaux, Bioingénierie Tissulaire, U1026, 146 rue Léo Saignat, F-33076, Bordeaux, France
- CHU de Bordeaux, Services d'Odontologie et de Santé Buccale, Place Amélie Raba Léon, F-33076, Bordeaux, France
| | - Noëlie B Thébaud
- INSERM, Bioingénierie Tissulaire, U1026, 146 rue Léo Saignat, F-33076, Bordeaux, France
- Université de Bordeaux, Bioingénierie Tissulaire, U1026, 146 rue Léo Saignat, F-33076, Bordeaux, France
- CHU de Bordeaux, Services d'Odontologie et de Santé Buccale, Place Amélie Raba Léon, F-33076, Bordeaux, France
| | - Raphaël Devillard
- INSERM, Bioingénierie Tissulaire, U1026, 146 rue Léo Saignat, F-33076, Bordeaux, France
- Université de Bordeaux, Bioingénierie Tissulaire, U1026, 146 rue Léo Saignat, F-33076, Bordeaux, France
- CHU de Bordeaux, Services d'Odontologie et de Santé Buccale, Place Amélie Raba Léon, F-33076, Bordeaux, France
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3
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Meng S, Mao J, Rouse EN, Le-Bel G, Bourget JM, Reed RR, Philippe E, How D, Zhang Z, Germain L, Guidoin R. The Red Kangaroo pericardium as a material source for the manufacture of percutaneous heart valves. Morphologie 2019; 103:37-47. [PMID: 30638803 DOI: 10.1016/j.morpho.2018.12.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 12/06/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND The kangaroo pericardium might be considered to be a good candidate material for use in the manufacture of the leaflets of percutaneous heart valves based upon the unique lifestyle. The diet consists of herbs, forbs and strubs. The kangaroo pericardium holds an undulated structure of collagen. MATERIAL AND METHOD A Red Kangaroo was obtained after a traffic fatality and the pericardium was dissected. Four compasses were cut from four different sites: auricular (AUR), atrial (ATR), sternoperitoneal (SPL) and phrenopericardial (PPL). They were investigated by means of scanning electron microscopy, light microscopy and transmission electron microscopy. RESULTS All the samples showed dense and wavy collagen bundles without vascularisation from both the epicardium and the parietal pericardium. The AUR and the ATR were 150±25μm thick whereas the SPL and the PPL were thinner at 120±20μm. The surface of the epicardium was smooth and glistening. The filaments of collagen were well individualized without any aggregation, but the banding was poorly defined and somewhat blurry. CONCLUSION This detailed morphological analysis of the kangaroo pericardium illustrated a surface resistant to thrombosis and physical characteristics resistant to fatigue. The morphological characteristics of the kangaroo pericardium indicate that it represents an outstanding alternative to the current sources e.g., bovine and porcine. However, procurement of tissues from the wild raises supply and sanitary issues. Health concerns based upon sanitary uncertainty and reliability of supply of wild animals remain real problems.
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Affiliation(s)
- S Meng
- Chongqing Key Lab of Catalysis and Functional Organic Molecules; College of Environment and Biotechnology, Chongqing Technology and Business University, Chongqing, PR China
| | - J Mao
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - E N Rouse
- Department of Comparative Medicine, College of Veterinary of Tennessee, Knoxville, TN, USA
| | - G Le-Bel
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - J M Bourget
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - R R Reed
- Department of Comparative Medicine, College of Veterinary of Tennessee, Knoxville, TN, USA
| | - E Philippe
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - D How
- Peninsula College of Medicine and Dentistry (PCMD), Plymouth, Devon, UK
| | - Z Zhang
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - L Germain
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - R Guidoin
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada.
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4
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Galbraith T, Roy V, Bourget JM, Tsutsumi T, Picard-Deland M, Morin JF, Gauvin R, Ismail AA, Auger FA, Gros-Louis F. Cell Seeding on UV-C-Treated 3D Polymeric Templates Allows for Cost-Effective Production of Small-Caliber Tissue-Engineered Blood Vessels. Biotechnol J 2018; 14:e1800306. [PMID: 30488607 DOI: 10.1002/biot.201800306] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 10/05/2018] [Indexed: 01/28/2023]
Abstract
There is a strong clinical need to develop small-caliber tissue-engineered blood vessels for arterial bypass surgeries. Such substitutes can be engineered using the self-assembly approach in which cells produce their own extracellular matrix (ECM), creating a robust vessel without exogenous material. However, this approach is currently limited to the production of flat sheets that need to be further rolled into the final desired tubular shape. In this study, human fibroblasts and smooth muscle cells were seeded directly on UV-C-treated cylindrical polyethylene terephthalate glycol-modified (PETG) mandrels of 4.8 mm diameter. UV-C treatment induced surface modification, confirmed by Fourier-transform infrared spectroscopy (FTIR) analysis, was necessary to ensure proper cellular attachment and optimized ECM secretion/assembly. This novel approach generated solid tubular conduits with high level of cohesion between concentric cellular layers and enhanced cell-driven circumferential alignment that can be manipulated after 21 days of culture. This simple and cost-effective mandrel-seeded approach also allowed for endothelialization of the construct and the production of perfusable trilayered tissue-engineered blood vessels with a closed lumen. This study lays the foundation for a broad field of possible applications enabling custom-made reconstructed tissues of specialized shapes using a surface treated 3D structure as a template for tissue engineering.
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Affiliation(s)
- Todd Galbraith
- Laval University Experimental Organogenesis Research Center/LOEX, Division of Regenerative Medicine, CHU de Québec Research Center, Enfant-Jésus Hospital, 1401, 18e rue, Québec, G1J 1Z4, Canada
| | - Vincent Roy
- Laval University Experimental Organogenesis Research Center/LOEX, Division of Regenerative Medicine, CHU de Québec Research Center, Enfant-Jésus Hospital, 1401, 18e rue, Québec, G1J 1Z4, Canada.,Department of Surgery, Faculty of Medicine, Laval University, Québec, Canada
| | - Jean-Michel Bourget
- Laval University Experimental Organogenesis Research Center/LOEX, Division of Regenerative Medicine, CHU de Québec Research Center, Enfant-Jésus Hospital, 1401, 18e rue, Québec, G1J 1Z4, Canada.,Department of Surgery, Faculty of Medicine, Laval University, Québec, Canada
| | - Tamao Tsutsumi
- Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Montréal, QC, Canada
| | - Maxime Picard-Deland
- Laval University Experimental Organogenesis Research Center/LOEX, Division of Regenerative Medicine, CHU de Québec Research Center, Enfant-Jésus Hospital, 1401, 18e rue, Québec, G1J 1Z4, Canada.,Department of Surgery, Faculty of Medicine, Laval University, Québec, Canada
| | - Jean-François Morin
- Department of Chemistry, Faculty of Science and Engineering, Laval University, Québec, QC, Canada
| | - Robert Gauvin
- Laval University Experimental Organogenesis Research Center/LOEX, Division of Regenerative Medicine, CHU de Québec Research Center, Enfant-Jésus Hospital, 1401, 18e rue, Québec, G1J 1Z4, Canada.,Department of Surgery, Faculty of Medicine, Laval University, Québec, Canada
| | - Ashraf A Ismail
- Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Montréal, QC, Canada
| | - François A Auger
- Laval University Experimental Organogenesis Research Center/LOEX, Division of Regenerative Medicine, CHU de Québec Research Center, Enfant-Jésus Hospital, 1401, 18e rue, Québec, G1J 1Z4, Canada.,Department of Surgery, Faculty of Medicine, Laval University, Québec, Canada
| | - François Gros-Louis
- Laval University Experimental Organogenesis Research Center/LOEX, Division of Regenerative Medicine, CHU de Québec Research Center, Enfant-Jésus Hospital, 1401, 18e rue, Québec, G1J 1Z4, Canada.,Department of Surgery, Faculty of Medicine, Laval University, Québec, Canada
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5
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Fu Y, Li B, Bourget JM, Bondarenko O, Lin J, Guzman R, Paynter R, Desaulniers D, Qin B, Wang L, Germain L, Zhang Z, Guidoin R. The Triplex BioValsalva Prostheses To Reconstruct the Aortic Valve and the Aortic Root. J Long Term Eff Med Implants 2016; 26:49-78. [PMID: 27649763 DOI: 10.1615/jlongtermeffmedimplants.2016013541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The Bentall procedure introduced in 1968 represents an undisputed cure to treat multiple pathologies involving the aortic valve and the ascending thoracic aorta. Over the years, multiple modifications have been introduced as well as a standardized approach to the operation with the goal to prevent long-term adverse events. The BioValsalva prosthesis provides a novel manner to more efficiently reconstruct the aortic valve together with the anatomy of the aortic root with the implantation of a valved conduit. This prosthesis comprises three sections: the collar supporting the valve; the skirt mimicking the Valsalva, which is suitable for the anastomoses with the coronary arteries; and the main body of the graft, which is designed to replace the ascending aorta. The BioValsalva prosthesis allows the Bentall operation to be used in patients whose aortic valve cannot be spared.
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Affiliation(s)
- Yijun Fu
- Key Laboratory of Textile Science and Technology of the Ministry of Education, College of Textile, Donghua University, Shanghai, China
| | - Bin Li
- Department of Vascular Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China; Department of Surgery, Laval University and Division of Regenerative Medicine CHU de Quebec Research Center, Quebec, Quebec City, Canada
| | - Jean-Michel Bourget
- Departments of Surgery and Radiology, Faculty of Medicine, Laval University, Axe Medecine Regeneratrice, Centre de Recherche, CHU, Quebec, (QC) Canada
| | - Olexandr Bondarenko
- Department of Surgery, Faculty of Medicine, Laval University, Quebec, QC, Canada; Division of Regenerative Medicine, CHU de Quebec Research Centre, Quebec, QC, Canada
| | - Jing Lin
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, Shanghai, PR. China
| | - Randolph Guzman
- Vascular Surgery, St. Boniface General Hospital and Department of Surgery, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Royston Paynter
- INRS, Energie, materiaux et communications, Varennes (QC) Canada
| | - Denis Desaulniers
- Department of Surgery, Faculty of Medicine, Laval University Quebec, QC, Canada
| | - Boyin Qin
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Lu Wang
- Key Laboratory of Textile Science and Technology of the Ministry of Education, College of Textile, Donghua University, Shanghai, China
| | - Lucie Germain
- Departments of Surgery and Radiology, Faculty of Medicine, Laval University, Axe Medecine Regeneratrice, Centre de Recherche, CHU, Quebec, (QC) Canada
| | - Ze Zhang
- Departments of Surgery and Radiology, Faculty of Medicine, Laval University, Axe Medecine Regeneratrice, Centre de Recherche, CHU, Quebec, (QC) Canada
| | - Robert Guidoin
- Departments of Surgery and Radiology, Faculty of Medicine, Laval University, Axe Medecine Regeneratrice, Centre de Recherche, CHU, Quebec, (QC) Canada
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Guidoin R, Fu Y, Li B, Weerasena N, Bourget JM, Paynter R, Li X, Lin J, Wang L, Qin B, Guzman R, Desaulniers D, Dionne G, Germain L, Zhang Z. The ROVT Elan Valved Biplex Conduits for the Reconstruction of the Right Ventricular Outflow Tract. J Long Term Eff Med Implants 2016; 26:13-42. [PMID: 27649761 DOI: 10.1615/jlongtermeffmedimplants.2016013857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The reconstruction of the right ventricular outflow tract (RVOT) system represents a considerable challenge for both manufacturers and surgeons because the patients requiring this type of devices have a very diverse set of anatomical challenges that can lead to complications and subsequent early device failures. We conducted an indepth investigation of a porcine-valve conduit explanted from a patient following an adverse event. A control device was analyzed as a reference. The rapid aging of the porcine valve in the right side of the heart together with major thrombus formation raises several questions. The difficulties encountered with materials used and also the design features of the conduits are once again highlighted. This group of patients continues to increase in number due to success in the surgical outcomes in early childhood. Therefore, there is a greater demand for an appropriate device. However, much work is still needed to achieve this goal, and the best approach to achieving success remains unanswered.
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Affiliation(s)
- Robert Guidoin
- Departments of Surgery and Radiology, Faculty of Medicine, Laval University, Axe Medecine Regeneratrice, Centre de Recherche, CHU, Quebec, (QC) Canada
| | - Yijun Fu
- Key Laboratory of Textile Science and Technology of the Ministry of Education, College of Textile, Donghua University, Shanghai, China
| | - Bin Li
- Department of Vascular Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China; Department of Surgery, Laval University and Division of Regenerative Medicine CHU de Quebec Research Center, Quebec, Quebec City, Canada
| | - Nihal Weerasena
- Cardiothoracic Surgery, Leeds General Infirmary Leeds, West Yorkshire, United Kingdom
| | - Jean-Michel Bourget
- Departments of Surgery and Radiology, Faculty of Medicine, Laval University, Axe Medecine Regeneratrice, Centre de Recherche, CHU, Quebec, (QC) Canada
| | - Royston Paynter
- INRS, Energie, materiaux et communications, Varennes (QC) Canada
| | - Xinxin Li
- Departments of Surgery and Radiology, Faculty of Medicine, Laval University, Axe Medecine Regeneratrice, Centre de Recherche, CHU, Quebec, (QC) Canada
| | - Jing Lin
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, Shanghai, PR. China
| | - Lu Wang
- Key Laboratory of Textile Science and Technology of the Ministry of Education, College of Textile, Donghua University, Shanghai, China
| | - Boyin Qin
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Randolph Guzman
- Vascular Surgery, St. Boniface General Hospital and Department of Surgery, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Denis Desaulniers
- Department of Surgery, Faculty of Medicine, Laval University Quebec, QC, Canada
| | - Guy Dionne
- Departments of Surgery and Radiology, Faculty of Medicine, Laval University, Axe Medecine Regeneratrice, Centre de Recherche, CHU, Quebec, (QC) Canada
| | - Lucie Germain
- Departments of Surgery and Radiology, Faculty of Medicine, Laval University, Axe Medecine Regeneratrice, Centre de Recherche, CHU, Quebec, (QC) Canada
| | - Ze Zhang
- Departments of Surgery and Radiology, Faculty of Medicine, Laval University, Axe Medecine Regeneratrice, Centre de Recherche, CHU, Quebec, (QC) Canada
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Bourget JM, Laterreur V, Gauvin R, Guillemette MD, Miville-Godin C, Mounier M, Tondreau MY, Tremblay C, Labbé R, Ruel J, Auger FA, Veres T, Germain L. Microstructured human fibroblast-derived extracellular matrix scaffold for vascular media fabrication. J Tissue Eng Regen Med 2016; 11:2479-2489. [DOI: 10.1002/term.2146] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2015] [Revised: 12/15/2015] [Accepted: 12/22/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Jean-Michel Bourget
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX; FRQS CHU de Quebec Research Centre; Quebec Canada
- Département de Chirurgie, Faculté de Médecine; Université Laval; Québec Canada
- Life Sciences Division; National Research Council (NRC) of Canada; Boucherville Canada
| | - Véronique Laterreur
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX; FRQS CHU de Quebec Research Centre; Quebec Canada
- Département de Génie Mécanique; Université Laval; Québec Canada
| | - Robert Gauvin
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX; FRQS CHU de Quebec Research Centre; Quebec Canada
- Département de Chirurgie, Faculté de Médecine; Université Laval; Québec Canada
| | - Maxime D. Guillemette
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX; FRQS CHU de Quebec Research Centre; Quebec Canada
- Département de Chirurgie, Faculté de Médecine; Université Laval; Québec Canada
| | | | - Maxence Mounier
- Life Sciences Division; National Research Council (NRC) of Canada; Boucherville Canada
| | - Maxime Y. Tondreau
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX; FRQS CHU de Quebec Research Centre; Quebec Canada
- Département de Chirurgie, Faculté de Médecine; Université Laval; Québec Canada
| | - Catherine Tremblay
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX; FRQS CHU de Quebec Research Centre; Quebec Canada
- Département de Génie Mécanique; Université Laval; Québec Canada
| | - Raymond Labbé
- Département de Chirurgie, Faculté de Médecine; Université Laval; Québec Canada
- Service de Chirurgie Vasculaire; CHU de Québec; Québec Canada
| | - Jean Ruel
- Département de Génie Mécanique; Université Laval; Québec Canada
| | - François A. Auger
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX; FRQS CHU de Quebec Research Centre; Quebec Canada
- Département de Chirurgie, Faculté de Médecine; Université Laval; Québec Canada
| | - Teodor Veres
- Life Sciences Division; National Research Council (NRC) of Canada; Boucherville Canada
| | - Lucie Germain
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX; FRQS CHU de Quebec Research Centre; Quebec Canada
- Département de Chirurgie, Faculté de Médecine; Université Laval; Québec Canada
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8
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Tondreau MY, Laterreur V, Gauvin R, Vallières K, Bourget JM, Lacroix D, Tremblay C, Germain L, Ruel J, Auger FA. Mechanical properties of endothelialized fibroblast-derived vascular scaffolds stimulated in a bioreactor. Acta Biomater 2015; 18:176-85. [PMID: 25749291 DOI: 10.1016/j.actbio.2015.02.026] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 12/22/2014] [Accepted: 02/28/2015] [Indexed: 01/12/2023]
Abstract
There is an ongoing clinical need for tissue-engineered small-diameter (<6mm) vascular grafts since clinical applications are restricted by the limited availability of autologous living grafts or the lack of suitability of synthetic grafts. The present study uses our self-assembly approach to produce a fibroblast-derived decellularized vascular scaffold that can then be available off-the-shelf. Briefly, scaffolds were produced using human dermal fibroblasts sheets rolled around a mandrel, maintained in culture to allow for the formation of cohesive and three-dimensional tubular constructs, and then decellularized by immersion in deionized water. Constructs were then endothelialized and perfused for 1week in an appropriate bioreactor. Mechanical testing results showed that the decellularization process did not influence the resistance of the tissue and an increase in ultimate tensile strength was observed following the perfusion of the construct in the bioreactor. These fibroblast-derived vascular scaffolds could be stored and later used to deliver readily implantable grafts within 4weeks including an autologous endothelial cell isolation and seeding process. This technology could greatly accelerate the clinical availability of tissue-engineered blood vessels.
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Jay L, Bourget JM, Goyer B, Singh K, Brunette I, Ozaki T, Proulx S. Characterization of tissue-engineered posterior corneas using second- and third-harmonic generation microscopy. PLoS One 2015; 10:e0125564. [PMID: 25918849 PMCID: PMC4412819 DOI: 10.1371/journal.pone.0125564] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 03/25/2015] [Indexed: 12/13/2022] Open
Abstract
Three-dimensional tissues, such as the cornea, are now being engineered as substitutes for the rehabilitation of vision in patients with blinding corneal diseases. Engineering of tissues for translational purposes requires a non-invasive monitoring to control the quality of the resulting biomaterial. Unfortunately, most current methods still imply invasive steps, such as fixation and staining, to clearly observe the tissue-engineered cornea, a transparent tissue with weak natural contrast. Second- and third-harmonic generation imaging are well known to provide high-contrast, high spatial resolution images of such tissues, by taking advantage of the endogenous contrast agents of the tissue itself. In this article, we imaged tissue-engineered corneal substitutes using both harmonic microscopy and classic histopathology techniques. We demonstrate that second- and third-harmonic imaging can non-invasively provide important information regarding the quality and the integrity of these partial-thickness posterior corneal substitutes (observation of collagen network, fibroblasts and endothelial cells). These two nonlinear imaging modalities offer the new opportunity of monitoring the engineered corneas during the entire process of production.
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Affiliation(s)
- Louis Jay
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Varennes, Quebec, Canada
- Centre de recherche de l’Hôpital Maisonneuve-Rosemont, Montréal, Quebec, Canada and Département d’ophtalmologie, Université de Montréal, Montréal, Quebec, Canada
| | - Jean-Michel Bourget
- Centre de recherche de l’Hôpital Maisonneuve-Rosemont, Montréal, Quebec, Canada and Département d’ophtalmologie, Université de Montréal, Montréal, Quebec, Canada
| | - Benjamin Goyer
- Axe médecine régénératrice, Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec, Québec, Quebec, Canada and Centre de recherche en organogénèse expérimentale de l’Université Laval / LOEX, Québec, Quebec, Canada
| | - Kanwarpal Singh
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Varennes, Quebec, Canada
- Centre de recherche de l’Hôpital Maisonneuve-Rosemont, Montréal, Quebec, Canada and Département d’ophtalmologie, Université de Montréal, Montréal, Quebec, Canada
| | - Isabelle Brunette
- Centre de recherche de l’Hôpital Maisonneuve-Rosemont, Montréal, Quebec, Canada and Département d’ophtalmologie, Université de Montréal, Montréal, Quebec, Canada
| | - Tsuneyuki Ozaki
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Varennes, Quebec, Canada
| | - Stéphanie Proulx
- Axe médecine régénératrice, Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec, Québec, Quebec, Canada and Centre de recherche en organogénèse expérimentale de l’Université Laval / LOEX, Québec, Quebec, Canada
- Département d’ophtalmologie et d’oto-rhino-laryngologie, Faculté de médecine, Université Laval, Québec, Quebec, Canada
- * E-mail:
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Roy O, Leclerc VB, Bourget JM, Thériault M, Proulx S. Understanding the process of corneal endothelial morphological change in vitro. Invest Ophthalmol Vis Sci 2015; 56:1228-37. [PMID: 25698769 DOI: 10.1167/iovs.14-16166] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Corneal endothelial cells often adopt a fibroblastic-like morphology in culture, a process that has been attributed to epithelial- or endothelial-to-mesenchymal transition (EMT or EndMT). Although being extensively studied in other cell types, this transition is less well characterized in the corneal endothelium. Because of their neuroectodermal origin and their in vivo mitotic arrest, corneal endothelial cells represent a particular tissue that deserves more attention. This review article presents the basic principles underlying EMT/EndMT, with emphasis on the current knowledge regarding the corneal endothelium. Furthermore, this review discusses cell culture conditions and major cell signaling pathways that have been identified as EndMT-triggering factors. Finally, it summarizes strategies that have been developed to inhibit EndMT in corneal endothelial cell culture. The review of current studies on corneal and classical EndMT highlights some research avenues to pursue in the future and underscores the need to extend our knowledge of this process in order to optimize usage of these cells in regenerative medicine.
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Affiliation(s)
- Olivier Roy
- Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec, Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Québec, Québec, Canada
| | - Véronique Beaulieu Leclerc
- Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec, Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Québec, Québec, Canada
| | - Jean-Michel Bourget
- Centre de Recherche de l'Hôpital Maisonneuve-Rosemont (HMR), Montréal, Québec, Canada Département d'Ophtalmologie, Faculté de Médecine, Université de Montréal, Montréal, Québec, Canada
| | - Mathieu Thériault
- Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec, Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Québec, Québec, Canada
| | - Stéphanie Proulx
- Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec, Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Québec, Québec, Canada
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Bisson F, Paquet C, Bourget JM, Zaniolo K, Rochette PJ, Landreville S, Damour O, Boudreau F, Auger FA, Guérin SL, Germain L. Contribution of Sp1 to Telomerase Expression and Activity in Skin Keratinocytes Cultured With a Feeder Layer. J Cell Physiol 2015; 230:308-17. [PMID: 24962522 DOI: 10.1002/jcp.24706] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 06/20/2014] [Indexed: 12/31/2022]
Abstract
The growth of primary keratinocytes is improved by culturing them with a feeder layer. The aim of this study was to assess whether the feeder layer increases the lifespan of cultured epithelial cells by maintaining or improving telomerase activity and expression. The addition of an irradiated fibroblast feeder layer of either human or mouse origin (i3T3) helped maintain telomerase activity as well as expression of the transcription factor Sp1 in cultured keratinocytes. In contrast, senescence occurred earlier, together with a reduction of Sp1 expression and telomerase activity, in keratinocytes cultured without a feeder layer. Telomerase activity was consistently higher in keratinocytes grown on the three different feeder layers tested relative to cells grown without them. Suppression of Sp1 expression by RNA inhibition (RNAi) reduced both telomerase expression and activity in keratinocytes and also abolished their long-term growth capacity suggesting that Sp1 is a key regulator of both telomerase gene expression and cell cycle progression of primary cultured human skin keratinocytes. The results of the present study therefore suggest that the beneficial influence of the feeder layer relies on its ability to preserve telomerase activity in cultured human keratinocytes through the maintenance of stable levels of Sp1 expression.
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Affiliation(s)
- Francis Bisson
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Université Laval, Québec, Canada
- Centre de Recherche FRQS du CHU de Québec, Québec, Canada
| | - Claudie Paquet
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Université Laval, Québec, Canada
- Centre de Recherche FRQS du CHU de Québec, Québec, Canada
| | - Jean-Michel Bourget
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Université Laval, Québec, Canada
- Centre de Recherche FRQS du CHU de Québec, Québec, Canada
| | - Karine Zaniolo
- Centre de Recherche FRQS du CHU de Québec, Québec, Canada
- CUO-Recherche, Québec, Canada
| | - Patrick J Rochette
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Université Laval, Québec, Canada
- Centre de Recherche FRQS du CHU de Québec, Québec, Canada
- CUO-Recherche, Québec, Canada
- Département d'Ophtalmologie et ORL-Chirurgie Cervico-Faciale, Faculté de Médecine, Université Laval, Québec, Canada
| | - Solange Landreville
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Université Laval, Québec, Canada
- Centre de Recherche FRQS du CHU de Québec, Québec, Canada
- CUO-Recherche, Québec, Canada
- Département d'Ophtalmologie et ORL-Chirurgie Cervico-Faciale, Faculté de Médecine, Université Laval, Québec, Canada
| | - Odile Damour
- Banque de Tissus et Cellules HCL, Laboratoire des Substituts Cutanés (LSC) CNRS UPR-412, Hôpital Edouard Herriot, Lyon, France
| | - François Boudreau
- Département d'Anatomie et de Biologie Cellulaire, Faculté de Médecine, Université de Sherbrooke, Sherbrooke, Canada
| | - François A Auger
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Université Laval, Québec, Canada
- Centre de Recherche FRQS du CHU de Québec, Québec, Canada
- CUO-Recherche, Québec, Canada
- Département d'Ophtalmologie et ORL-Chirurgie Cervico-Faciale, Faculté de Médecine, Université Laval, Québec, Canada
- Département de Chirurgie, Faculté de Médecine, Université Laval, Québec, Canada
| | - Sylvain L Guérin
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Université Laval, Québec, Canada
- Centre de Recherche FRQS du CHU de Québec, Québec, Canada
- CUO-Recherche, Québec, Canada
- Département d'Ophtalmologie et ORL-Chirurgie Cervico-Faciale, Faculté de Médecine, Université Laval, Québec, Canada
| | - Lucie Germain
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Université Laval, Québec, Canada
- Centre de Recherche FRQS du CHU de Québec, Québec, Canada
- CUO-Recherche, Québec, Canada
- Département d'Ophtalmologie et ORL-Chirurgie Cervico-Faciale, Faculté de Médecine, Université Laval, Québec, Canada
- Département de Chirurgie, Faculté de Médecine, Université Laval, Québec, Canada
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Li B, Liu B, Fu Y, Bondarenko O, Verdant A, Rochette-Drouin O, Lin J, Bourget JM, Guzman R, Wang L, Zhang Z, Douville Y, Germain L, Jing Z, Guidoin R. A Floating Thrombus Anchored at the Proximal Anastomosis of a Woven Thoracic Graft Mimicking a Genuine Aortic Dissection. J Long Term Eff Med Implants 2015; 25:179-200. [DOI: 10.1615/jlongtermeffmedimplants.2015012263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Dubé J, Bourget JM, Gauvin R, Lafrance H, Roberge CJ, Auger FA, Germain L. Progress in developing a living human tissue-engineered tri-leaflet heart valve assembled from tissue produced by the self-assembly approach. Acta Biomater 2014; 10:3563-70. [PMID: 24813743 DOI: 10.1016/j.actbio.2014.04.033] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 04/17/2014] [Accepted: 04/28/2014] [Indexed: 11/15/2022]
Abstract
The aortic heart valve is constantly subjected to pulsatile flow and pressure gradients which, associated with cardiovascular risk factors and abnormal hemodynamics (i.e. altered wall shear stress), can cause stenosis and calcification of the leaflets and result in valve malfunction and impaired circulation. Available options for valve replacement include homograft, allogenic or xenogenic graft as well as the implantation of a mechanical valve. A tissue-engineered heart valve containing living autologous cells would represent an alternative option, particularly for pediatric patients, but still needs to be developed. The present study was designed to demonstrate the feasibility of using a living tissue sheet produced by the self-assembly method, to replace the bovine pericardium currently used for the reconstruction of a stented human heart valve. In this study, human fibroblasts were cultured in the presence of sodium ascorbate to produce tissue sheets. These sheets were superimposed to create a thick construct. Tissue pieces were cut from these constructs and assembled together on a stent, based on techniques used for commercially available replacement valves. Histology and transmission electron microscopy analysis showed that the fibroblasts were embedded in a dense extracellular matrix produced in vitro. The mechanical properties measured were consistent with the fact that the engineered tissue was resistant and could be cut, sutured and assembled on a wire frame typically used in bioprosthetic valve assembly. After a culture period in vitro, the construct was cohesive and did not disrupt or disassemble. The tissue engineered heart valve was stimulated in a pulsatile flow bioreactor and was able to sustain multiple duty cycles. This prototype of a tissue-engineered heart valve containing cells embedded in their own extracellular matrix and sewn on a wire frame has the potential to be strong enough to support physiological stress. The next step will be to test this valve extensively in a bioreactor and at a later date, in a large animal model in order to assess in vivo patency of the graft.
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Affiliation(s)
- Jean Dubé
- Centre d'organogénèse expérimentale de l'Université Laval/LOEX, Centre de recherche FRQS du Centre hospitalier universitaire (CHU) de Québec, 1401, 18(eme) rue, G1J 1Z4 Québec, QC, Canada; Département de Chirurgie, Faculté de Médecine, Université Laval, 1050 Avenue de la Médecine, G1V 0A6 Québec, QC, Canada
| | - Jean-Michel Bourget
- Centre d'organogénèse expérimentale de l'Université Laval/LOEX, Centre de recherche FRQS du Centre hospitalier universitaire (CHU) de Québec, 1401, 18(eme) rue, G1J 1Z4 Québec, QC, Canada; Département de Chirurgie, Faculté de Médecine, Université Laval, 1050 Avenue de la Médecine, G1V 0A6 Québec, QC, Canada
| | - Robert Gauvin
- Centre d'organogénèse expérimentale de l'Université Laval/LOEX, Centre de recherche FRQS du Centre hospitalier universitaire (CHU) de Québec, 1401, 18(eme) rue, G1J 1Z4 Québec, QC, Canada; Département de Chirurgie, Faculté de Médecine, Université Laval, 1050 Avenue de la Médecine, G1V 0A6 Québec, QC, Canada
| | - Hugues Lafrance
- Edwards Lifesciences LLC, One Edwards Way, Irvine, CA 92614, USA
| | - Charles J Roberge
- Centre d'organogénèse expérimentale de l'Université Laval/LOEX, Centre de recherche FRQS du Centre hospitalier universitaire (CHU) de Québec, 1401, 18(eme) rue, G1J 1Z4 Québec, QC, Canada; Département de Chirurgie, Faculté de Médecine, Université Laval, 1050 Avenue de la Médecine, G1V 0A6 Québec, QC, Canada
| | - François A Auger
- Centre d'organogénèse expérimentale de l'Université Laval/LOEX, Centre de recherche FRQS du Centre hospitalier universitaire (CHU) de Québec, 1401, 18(eme) rue, G1J 1Z4 Québec, QC, Canada; Département de Chirurgie, Faculté de Médecine, Université Laval, 1050 Avenue de la Médecine, G1V 0A6 Québec, QC, Canada
| | - Lucie Germain
- Centre d'organogénèse expérimentale de l'Université Laval/LOEX, Centre de recherche FRQS du Centre hospitalier universitaire (CHU) de Québec, 1401, 18(eme) rue, G1J 1Z4 Québec, QC, Canada; Département de Chirurgie, Faculté de Médecine, Université Laval, 1050 Avenue de la Médecine, G1V 0A6 Québec, QC, Canada.
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Laterreur V, Ruel J, Auger FA, Vallières K, Tremblay C, Lacroix D, Tondreau M, Bourget JM, Germain L. Comparison of the direct burst pressure and the ring tensile test methods for mechanical characterization of tissue-engineered vascular substitutes. J Mech Behav Biomed Mater 2014; 34:253-63. [DOI: 10.1016/j.jmbbm.2014.02.017] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 02/10/2014] [Accepted: 02/13/2014] [Indexed: 11/28/2022]
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Tremblay C, Ruel J, Bourget JM, Laterreur V, Vallières K, Tondreau MY, Lacroix D, Germain L, Auger FA. A new construction technique for tissue-engineered heart valves using the self-assembly method. Tissue Eng Part C Methods 2014; 20:905-15. [PMID: 24576074 DOI: 10.1089/ten.tec.2013.0698] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Tissue engineering appears as a promising option to create new heart valve substitutes able to overcome the serious drawbacks encountered with mechanical substitutes or tissue valves. The objective of this article is to present the construction method of a new entirely biological stentless aortic valve using the self-assembly method and also a first assessment of its behavior in a bioreactor when exposed to a pulsatile flow. A thick tissue was created by stacking several fibroblast sheets produced with the self-assembly technique. Different sets of custom-made templates were designed to confer to the thick tissue a three-dimensional (3D) shape similar to that of a native aortic valve. The construction of the valve was divided in two sequential steps. The first step was the installation of the thick tissue in a flat preshaping template followed by a 4-week maturation period. The second step was the actual cylindrical 3D forming of the valve. The microscopic tissue structure was assessed using histological cross sections stained with Masson's Trichrome and Picrosirius Red. The thick tissue remained uniformly populated with cells throughout the construction steps and the dense extracellular matrix presented corrugated fibers of collagen. This first prototype of tissue-engineered heart valve was installed in a bioreactor to assess its capacity to sustain a light pulsatile flow at a frequency of 0.5 Hz. Under the light pulsed flow, it was observed that the leaflets opened and closed according to the flow variations. This study demonstrates that the self-assembly method is a viable option for the construction of complex 3D shapes, such as heart valves, with an entirely biological material.
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Affiliation(s)
- Catherine Tremblay
- 1 Département de génie mécanique, Faculté des sciences et de génie, Université Laval , Québec, Canada
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Tondreau M, Bourget JM, Fortin M, Bouchard C, Lacroix D, Auger FA. A novel tissue-engineered devitalized vascular prosthesis. Cardiovasc Pathol 2013. [DOI: 10.1016/j.carpath.2013.01.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Mostefai HA, Bourget JM, Meziani F, Martinez MC, Mercat A, Asfar P, Germain L, Andriantsitohaina R. Interleukin-10 controls the protective effects of circulating microparticles from septic shock patients on tissue-engineered vascular media. Cardiovasc Pathol 2013. [DOI: 10.1016/j.carpath.2013.01.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Bourget JM, Laterreur V, Guillemette M, Gauvin R, Miville-Godin C, Mounier M, Ruel J, Auger FA, Veres T, Germain L. Recent Advances in the Development of Tissue-engineered Vascular Media Made by Self-assembly. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.proeng.2013.05.111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Bourget JM, Gauvin R, Larouche D, Lavoie A, Labbé R, Auger FA, Germain L. Human fibroblast-derived ECM as a scaffold for vascular tissue engineering. Biomaterials 2012; 33:9205-13. [PMID: 23031531 DOI: 10.1016/j.biomaterials.2012.09.015] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Accepted: 09/10/2012] [Indexed: 10/27/2022]
Abstract
The self-assembly approach is based on the capability of mesenchymal cells to secrete and organize their own extracellular matrix (ECM). This tissue engineering method allows for the fabrication of autologous living tissues, such as tissue-engineered blood vessels (TEBV) and skin. However, the secretion of ECM by smooth muscle cells (SMCs), required to produce the vascular media, may represent a long process in vitro. The aim of this work was to reduce the time required to produce a tissue-engineered vascular media (TEVM) and extend the production of TEVM with SMCs from all patients without compromising its mechanical and functional properties. Therefore, we developed a decellularized matrix scaffold (dMS) produced from dermal fibroblasts (DF) or saphenous vein fibroblasts (SVF), in which SMCs were seeded to produce a TEVM. Mechanical and contractile properties of these TEVM (referred to as nTEVM) were compared to standard self-assembled TEVM (sTEVM). This approach reduced the production time from 6 to 4 weeks. Moreover, nTEVM were more resistant to tensile load than sTEVM and their vascular reactivity was also improved. This new fabrication technique allows for the production of a vascular media using SMCs isolated from any patient, regardless of their capacity to synthesize ECM. Moreover, these scaffolds can be stored to be available when needed, in order to accelerate the production of the vascular substitute using autologous vascular cells.
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Affiliation(s)
- Jean-Michel Bourget
- LOEX-Centre de Recherche FRQS du Centre Hospitalier Affilié Universitaire de Québec, Université Laval, Québec, QC, Canada
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Gauvin R, Guillemette M, Galbraith T, Bourget JM, Larouche D, Marcoux H, Aubé D, Hayward C, Auger FA, Germain L. Mechanical properties of tissue-engineered vascular constructs produced using arterial or venous cells. Tissue Eng Part A 2011; 17:2049-59. [PMID: 21457095 DOI: 10.1089/ten.tea.2010.0613] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
There is a clinical need for better blood vessel substitutes, as current surgical procedures are limited by the availability of suitable autologous vessels and suboptimal behavior of synthetic grafts in small caliber arterial graft (<5 mm) applications. The aim of the present study was to compare the mechanical properties of arterial and venous tissue-engineered vascular constructs produced by the self-assembly approach using cells extracted from either the artery or vein harvested from the same human umbilical cord. The production of a vascular construct comprised of a media and an adventitia (TEVMA) was achieved by rolling a continuous tissue sheet containing both smooth muscle cells and adventitial fibroblasts grown contiguously in the same tissue culture plate. Histology and immunofluorescence staining were used to evaluate the structure and composition of the extracellular matrix of the vascular constructs. The mechanical strength was assessed by uniaxial tensile testing, whereas viscoelastic behavior was evaluated by stepwise stress-relaxation and by cyclic loading hysteresis analysis. Tensile testing showed that the use of arterial cells resulted in stronger and stiffer constructs when compared with those produced using venous cells. Moreover, cyclic loading demonstrated that constructs produced using arterial cells were able to bear higher loads for the same amount of strain when compared with venous constructs. These results indicate that cells isolated from umbilical cord can be used to produce vascular constructs. Arterial constructs possessed superior mechanical properties when compared with venous constructs produced using cells isolated from the same human donor. This study highlights the fact that smooth muscle cells and fibroblasts originating from different cell sources can potentially lead to distinct tissue properties when used in tissue engineering applications.
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Affiliation(s)
- Robert Gauvin
- Centre LOEX de l'Université Laval, Génie tissulaire et régénérationand Département de Chirurgie, Faculté de Médecine, Université Laval Québec, Québec, Canada
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Pricci M, Bourget JM, Robitaille H, Porro C, Soleti R, Mostefai HA, Auger FA, Martinez MC, Andriantsitohaina R, Germain L. Applications of human tissue-engineered blood vessel models to study the effects of shed membrane microparticles from T-lymphocytes on vascular function. Tissue Eng Part A 2009; 15:137-45. [PMID: 18925833 DOI: 10.1089/ten.tea.2007.0360] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Microparticles (MPs) are membrane vesicles harboring cell surface proteins and containing cytoplasmic components of the original cell. High levels of circulating MPs have been detected in pathological states associated with vascular dysfunction. We took advantage of the self-assembly method of tissue engineering to produce in vitro three vascular constructs from human vascular smooth muscle cells and fibroblasts to investigate the role of the adventitia in the modulation of vascular tone by MPs, comparing the contractile response of each of these constructs to histamine. The first two were composed of an adventitia (tissue-engineered vascular adventitia (TEVA)) or a media (tissue-engineered vascular media (TEVM)) solely, and the third one contained a media and an adventitia (tissue-engineered vascular media and adventitia (TEVMA)). In the three constructs, the results show that histamine induces contraction insensitive to blockade of inducible nitric oxide (NO) synthase (iNOS) and cyclooxygenase-2 (COX-2) and not affected by MP treatment. MPs decreased NO production and nuclear factor (NF)-kappaB expression but did not affect superoxide anion (O(2)(-)) release in TEVA. MPs enhanced NF-kappaB expression but did not affect iNOS and COX-2 expression or NO or O(2)(-) release in TEVM. In TEVMA, MPs did not enhance NF-kappaB expression, but COX-2 expression was higher, and O(2)(-) release was lower. Thus, MPs affected NO, O(2)(-), NF-kappaB, and COX-2 in a subtle fashion to maintain the contractile response to histamine. The use of tissue-engineered vascular constructs results in a better understanding of the effect of MPs on human adventitia and media.
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Affiliation(s)
- Maria Pricci
- Institut National de la Santé et de la Recherche Médicale 771, CNRS UMR 6214, Faculté de Médecine, Angers, France
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Proulx S, Bourget JM, Gagnon N, Martel S, Deschambeault A, Carrier P, Giasson CJ, Auger FA, Brunette I, Germain L. Optimization of culture conditions for porcine corneal endothelial cells. Mol Vis 2007; 13:524-33. [PMID: 17438517 PMCID: PMC2652016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
PURPOSE To optimize the growth condition of porcine corneal endothelial cells (PCEC), we evaluated the effect of coculturing with a feeder layer (irradiated 3T3 fibroblasts) with the addition of various exogenous factors, such as epidermal growth factor (EGF), nerve growth factor (NGF), bovine pituitary extract (BPE), ascorbic acid, and chondroitin sulfate, on cell proliferation, size, and morphology. METHODS PCEC cultures were seeded at an initial cell density of 400 cells/cm(2) in the presence or absence of 20,000 murine-irradiated 3T3 fibroblast/cm(2) in the classic media Dulbecco's Modified Eagle's Medium (DMEM) supplemented with 20% fetal bovine serum (FBS). Mean cell size and bromodeoxyuridine incorporation was assessed at various passages. Growth-promoting factors were studies by seeding PCEC at 8,000 cells/cm(2) in DMEM with 20% FBS or Opti-MEM I supplemented with 4% FBS and one of the following additives: EGF (0.5, 5, 25 ng/ml), NGF (5, 20, 50 ng/ml), BPE (25, 50, 100, 200 microg/ml), ascorbic acid (10, 20, 40 microg/ml) and chondroitin sulfate (0.03, 0.08, 1.6%), alone or in combination. Cell number, size and morphology of PCEC were assessed on different cell populations. Each experiment was repeated at least twice in three sets. In some cases, cell cultures were maintained after confluence to observe post-confluence changes in cell morphology. RESULTS Co-cultures of PCEC grown in DMEM 20% FBS with a 3T3 feeder layer improved the preservation of small polygonal cell shape. EGF, NGF, and chondroitin sulfate did not induce proliferation above basal level nor did these additives help maintain a small size. However, chondroitin sulfate did help preserve a good morphology. BPE and ascorbic acid had dose-dependent effects on proliferation. The combination of BPE, chondroitin sulfate, and ascorbic acid significantly increased cell numbers above those achieved with serum alone. No noticeable changes were observed when PCEC were cocultured with a 3T3 feeder layer in the final selected medium. CONCLUSIONS Improvements have been made for the culture of PCEC. The final selected medium consistently allowed the growth of a contact-inhibited cell monolayer of small, polygonal-shaped cells.
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Affiliation(s)
- Stéphanie Proulx
- Laboratoire d'Organogénèse Experiméntale, Hôpital du St-Sacrement du Centre Hospitalier Affilié Universitaire de Québec and Department of Oto-Rhino-Laryngology and Ophthalmology, Université Laval, Québec, Canada.
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