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Borges MF, Maurmann N, Pranke P. Easy-to-Assembly System for Decellularization and Recellularization of Liver Grafts in a Bioreactor. MICROMACHINES 2023; 14:449. [PMID: 36838149 PMCID: PMC9962055 DOI: 10.3390/mi14020449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/31/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
Decellularization of organs creates an acellular scaffold, ideal for being repopulated by cells. In this work, a low-cost perfusion system was created to be used in the process of liver decellularization and as a bioreactor after recellularization. It consists of a glass chamber to house the organ coupled to a peristaltic pump to promote liquid flow through the organ vascular tree. The rats' liver decellularization was made with a solution of sodium dodecyl sulfate. The recellularization was made with 108 mesenchymal stromal/stem cells and cultivated for seven days. The decellularized matrices showed an absence of DNA while preserving the collagen and glycosaminoglycans quantities, confirming the efficiency of the process. The functional analyses showed a rise in lactate dehydrogenase levels occurring in the first days of the cultivation, suggesting that there is cell death in this period, which stabilized on the seventh day. Histological analysis showed conservation of the collagen web and some groups of cells next to the vessels. It was possible to establish a system for decellularization and a bioreactor to use for the recellularization method. It is easy to assemble, can be ready to use in little time and be easily sterilized.
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Affiliation(s)
- Maurício Felisberto Borges
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-000, Brazil
| | - Natasha Maurmann
- Postgraduate Program in Physiology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90050-170, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-000, Brazil
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Junka R, Quevada K, Yu X. Acellular polycaprolactone scaffolds laden with fibroblast/endothelial cell-derived extracellular matrix for bone regeneration. J Biomed Mater Res A 2019; 108:351-364. [PMID: 31618528 DOI: 10.1002/jbm.a.36821] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 10/03/2019] [Accepted: 10/10/2019] [Indexed: 12/19/2022]
Abstract
Inconsistencies in graft osteoconduction and osteoinduction present a clinical challenge in regeneration of large bone defects. Deposition of decellularized extracellular matrix (dECM) on tissue engineered scaffolds offers an alternative approach that can enhance these properties by mimicking bone's molecular complexity and direct infiltrating cells to repair damaged bone. However, dECMs derived from homogenous cell populations do not adequately simulate the heterogeneous and vascularized microenvironment of the bone. In this study, successive culture and decellularization of fibroblasts and endothelial cells (ECs) grown on polycaprolactone microfibers was used to develop a bioactive scaffold with heterogeneous dECM mimicking endothelial basement membrane. These scaffolds had greater amount of protein and minimally increased nucleic acid content than scaffolds with homogenous culture dECM. Coomassie Blue and antibody staining revealed extensive tube formation by ECs on fibroblast dECM. Fibroblast/endothelial dECM significantly enhanced osteoblast attachment, alkaline phosphatase activity, and osteocalcin- and osteopontin-positive extracellular mineral deposits. We demonstrated that the osteoconduction of dECMs can be tailored with the appropriate combination of cells to accelerate osteoblast mineral secretion. The overall concept can be expanded to generate increasingly more complex tissue constructs for regeneration of bone defects and other vascularized tissues.
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Affiliation(s)
- Radoslaw Junka
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey
| | - Kristian Quevada
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey
| | - Xiaojun Yu
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey
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Paim Á, Cardozo NSM, Tessaro IC, Pranke P. Relevant biological processes for tissue development with stem cells and their mechanistic modeling: A review. Math Biosci 2018; 301:147-158. [PMID: 29746816 DOI: 10.1016/j.mbs.2018.05.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 04/27/2018] [Accepted: 05/04/2018] [Indexed: 02/07/2023]
Abstract
A potential alternative for tissue transplants is tissue engineering, in which the interaction of cells and biomaterials can be optimized. Tissue development in vitro depends on the complex interaction of several biological processes such as extracellular matrix synthesis, vascularization and cell proliferation, adhesion, migration, death, and differentiation. The complexity of an individual phenomenon or of the combination of these processes can be studied with phenomenological modeling techniques. This work reviews the main biological phenomena in tissue development and their mathematical modeling, focusing on mesenchymal stem cell growth in three-dimensional scaffolds.
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Affiliation(s)
- Ágata Paim
- Department of Chemical Engineering, Universidade Federal do Rio Grande do Sul (UFRGS), R. Eng. Luis Englert, s/n Porto Alegre, Rio Grande do Sul 90040-040, Brazil; Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752. Porto Alegre, Rio Grande do Sul 90610-000, Brazil.
| | - Nilo S M Cardozo
- Department of Chemical Engineering, Universidade Federal do Rio Grande do Sul (UFRGS), R. Eng. Luis Englert, s/n Porto Alegre, Rio Grande do Sul 90040-040, Brazil
| | - Isabel C Tessaro
- Department of Chemical Engineering, Universidade Federal do Rio Grande do Sul (UFRGS), R. Eng. Luis Englert, s/n Porto Alegre, Rio Grande do Sul 90040-040, Brazil
| | - Patricia Pranke
- Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752. Porto Alegre, Rio Grande do Sul 90610-000, Brazil; Stem Cell Research Institute, Porto Alegre, Rio Grande do Sul, Brazil
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Fortier GM, Gauvin R, Proulx M, Vallée M, Fradette J. Dynamic culture induces a cell type-dependent response impacting on the thickness of engineered connective tissues. J Tissue Eng Regen Med 2011; 7:292-301. [PMID: 22162315 DOI: 10.1002/term.522] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Revised: 05/25/2011] [Accepted: 09/22/2011] [Indexed: 11/11/2022]
Abstract
Mesenchymal cells are central to connective tissue homeostasis and are widely used for tissue-engineering applications. Dermal fibroblasts and adipose-derived stromal cells (ASCs) allow successful tissue reconstruction by the self-assembly approach of tissue engineering. This method leads to the production of multilayered tissues, devoid of exogenous biomaterials, that can be used as stromal compartments for skin or vesical reconstruction. These tissues are formed by combining cell sheets, generated through cell stimulation with ascorbic acid, which favours the cell-derived production/organization of matrix components. Since media motion can impact on cell behaviour, we investigated the effect of dynamic culture on mesenchymal cells during tissue reconstruction, using the self-assembly method. Tissues produced using ASCs in the presence of a wave-like movement were nearly twice thicker than under standard conditions, while no difference was observed for tissues produced from dermal fibroblasts. The increased matrix deposition was not correlated with an increased proliferation of ASCs, or by higher transcript levels of fibronectin or collagens I and III. A 30% increase of type V collagen mRNA was observed. Interestingly, tissues engineered from dermal fibroblasts featured a four-fold higher level of MMP-1 transcripts under dynamic conditions. Mechanical properties were similar for tissues reconstructed using dynamic or static conditions. Finally, cell sheets produced using ASCs under dynamic conditions could readily be manipulated, resulting in a 2 week reduction of the production time (from 5 to 3 weeks). Our results describe a distinctive property of ASCs' response to media motion, indicating that their culture under dynamic conditions leads to optimized tissue engineering.
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Affiliation(s)
- Guillaume Marceau Fortier
- Centre LOEX de l'Université Laval, Génie Tissulaire et Régénération; LOEX - Centre de Recherche FRSQ du Centre Hospitalier Affilié Universitaire de Québec, Québec, QC, Canada G1J 1Z4
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Decaris ML, Leach JK. Design of experiments approach to engineer cell-secreted matrices for directing osteogenic differentiation. Ann Biomed Eng 2010; 39:1174-85. [PMID: 21120695 PMCID: PMC3069311 DOI: 10.1007/s10439-010-0217-x] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Accepted: 11/19/2010] [Indexed: 12/18/2022]
Abstract
The presentation of extracellular matrix (ECM) proteins provides an opportunity to instruct the phenotype and behavior of responsive cells. Decellularized cell-secreted matrix coatings (DM) represent a biomimetic culture surface that retains the complexity of the natural ECM. Microenvironmental culture conditions alter the composition of these matrices and ultimately the ability of DMs to direct cell fate. We employed a design of experiments (DOE) multivariable analysis approach to determine the effects and interactions of four variables (culture duration, cell seeding density, oxygen tension, and media supplementation) on the capacity of DMs to direct the osteogenic differentiation of human mesenchymal stem cells (hMSCs). DOE analysis revealed that matrices created with extended culture duration, ascorbate-2-phosphate supplementation, and in ambient oxygen tension exhibited significant correlations with enhanced hMSC differentiation. We validated the DOE model results using DMs predicted to have superior (DM1) or lesser (DM2) osteogenic potential for naïve hMSCs. Compared to cells on DM2, hMSCs cultured on DM1 expressed 2-fold higher osterix levels and deposited 3-fold more calcium over 3 weeks. Cells on DM1 coatings also exhibited greater proliferation and viability compared to DM2-coated substrates. This study demonstrates that DOE-based analysis is a powerful tool for optimizing engineered systems by identifying significant variables that have the greatest contribution to the target output.
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Affiliation(s)
- Martin L. Decaris
- Department of Biomedical Engineering, University of California, 451 Health Sciences Drive, Davis, CA 95616 USA
| | - J. Kent Leach
- Department of Biomedical Engineering, University of California, 451 Health Sciences Drive, Davis, CA 95616 USA
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Alves da Silva ML, Martins A, Costa-Pinto AR, Costa P, Faria S, Gomes M, Reis RL, Neves NM. Cartilage tissue engineering using electrospun PCL nanofiber meshes and MSCs. Biomacromolecules 2010; 11:3228-36. [PMID: 21105638 DOI: 10.1021/bm100476r] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Mesenchymal stem cells (MSCs) have been recognized for their ability to differentiate into cells of different tissues such as bone, cartilage, or adipose tissue, and therefore are of great interest for potential therapeutic strategies. Adherent, colony-forming, fibroblastic cells were isolated from human bone marrow aspirates, from patients undergoing knee arthroplasties, and the MSCs phenotype characterized by flow cytometry. Afterward, cells were seeded onto electrospun polycaprolactone nanofiber meshes and cultured in a multichamber flow perfusion bioreactor to determine their ability to produce cartilagineous extracellular matrix. Results indicate that the flow perfusion bioreactor increased the chondrogenic differentiation of hBM-MSCs, as confirmed either by morphological and RT-PCR analysis. Cartilage-related genes such as aggrecan, collagen type II, and Sox9 were expressed. ECM deposition was also detected by histological procedures. Collagen type II was present in the samples, as well as collagen type I. Despite no statistically significant values being obtained for gene expression, the other results support the choice of the bioreactor for this type of culture.
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Affiliation(s)
- M L Alves da Silva
- 3B’s Research Groups--Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquartersof the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, ZonaIndustrial da Gandra, S. Claudio do Barco, 4806-909 Caldas das Taipas, Guimarães, Portugal.
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Martins AM, Alves CM, Kurtis Kasper F, Mikos AG, Reis RL. Responsive and in situ-forming chitosan scaffolds for bone tissue engineering applications: an overview of the last decade. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b916259n] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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