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Perfusion decellularization

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https://www.readbyqxmd.com/read/29748585/humanizing-miniature-hearts-through-4-flow-cannulation-perfusion-decellularization-and-recellularization
#1
Duong T Nguyen, Matthew O'Hara, Cecilia Graneli, Ryan Hicks, Tasso Miliotis, Ann-Christin Nyström, Sara Hansson, Pia Davidsson, Li-Ming Gan, Maria Chiara Magnone, Magnus Althage, Sepideh Heydarkhan-Hagvall
Despite improvements in pre-clinical drug testing models, predictability of clinical outcomes continues to be inadequate and costly due to poor evidence of drug metabolism. Humanized miniature organs integrating decellularized rodent organs with tissue specific cells are translational models that can provide further physiological understanding and evidence. Here, we evaluated 4-Flow cannulated rat hearts as the fundamental humanized organ model for cardiovascular drug validation. Results show clearance of cellular components in all chambers in 4-Flow hearts with efficient perfusion into both coronary arteries and cardiac veins...
May 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29742511/decellularized-pancreas-matrix-scaffolds-for-tissue-engineering-using-ductal-or-arterial-catheterization
#2
Javad Hashemi, Parvin Pasalar, Masoud Soleimani, Ehsan Arefian, Reza Khorramirouz, Aram Akbarzadeh, Fariba Ghorbani, Seyed Ehsan Enderami, Abdol Mohammad Kajbafzadeh
INTRODUCTION: Diabetes is known as a worldwide disease with a great burden on society. Since therapeutic options cover a limited number of target points, new therapeutic strategies in the field of regenerative medicine are considered. Bioscaffolds along with islet cells would provide bioengineered tissue as a substitute for β-cells. The perfusion-decellularization technique is considered to create such scaffolds since they mimic the compositional, architectural, and biomechanical nature of a native organ...
May 9, 2018: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/29719565/the-rat-pancreatic-body-tail-as-a-source-of-a-novel-extracellular-matrix-scaffold-for-endocrine-pancreas-bioengineering
#3
Huajun Yu, Yunzhi Chen, Hongru Kong, Qikuan He, Hongwei Sun, Pravin Avinash Bhugul, Qiyu Zhang, Bicheng Chen, Mengtao Zhou
Background: Regenerative medicine and tissue engineering are promising approaches for organ transplantation. Extracellular matrix (ECM) based scaffolds obtained through the decellularization of natural organs have become the preferred platform for organ bioengineering. In the field of pancreas bioengineering, acellular scaffolds from different animals approximate the biochemical, spatial and vascular relationships of the native extracellular matrix and have been proven to be a good platform for recellularization and in vitro culture...
2018: Journal of Biological Engineering
https://www.readbyqxmd.com/read/29710813/decellularized-diaphragmatic-muscle-drives-a-constructive-angiogenic-response-in-vivo
#4
Mario Enrique Alvarèz Fallas, Martina Piccoli, Chiara Franzin, Alberto Sgrò, Arben Dedja, Luca Urbani, Enrica Bertin, Caterina Trevisan, Piergiorgio Gamba, Alan J Burns, Paolo De Coppi, Michela Pozzobon
Skeletal muscle tissue engineering (TE) aims to efficiently repair large congenital and acquired defects. Biological acellular scaffolds are considered a good tool for TE, as decellularization allows structural preservation of tissue extracellular matrix (ECM) and conservation of its unique cytokine reservoir and the ability to support angiogenesis, cell viability, and proliferation. This represents a major advantage compared to synthetic scaffolds, which can acquire these features only after modification and show limited biocompatibility...
April 28, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29702745/aortic-valve-cell-seeding-into-decellularized-animal-pericardium-by-perfusion-assisted-bioreactor
#5
Francesco Amadeo, Federica Boschetti, Gianluca Polvani, Cristina Banfi, Maurizio Pesce, Rosaria Santoro
Animal-derived pericardium is the elective tissue employed in manufacturing heart valve prostheses. The preparation of this tissue for biological valves production consists in fixation with aldehydes, which reduces, but not eliminates, the xenoantigens and the donor cellular material. As a consequence, especially in patients below 65-70 years of age, the employment of pericardium containing valve substitutes is not indicated due to progressive calcification that causes tissue degeneration and recurrence of valve insufficiency...
April 27, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29623537/glutaraldehyde-cross-linking-modification-of-decellularized-rat-kidney-scaffolds
#6
Yaling Yu, Li Liu, Jianse Zhang, Zairong Wei, Jin Mei
The decellularized (DC) scaffolds retain three-dimensional structures for the stimulation of cell growth, with components of the extracellular matrix (ECM) relatively conserved between species. The strategy based on decellularized scaffolds provides a new way for organ regeneration, with a number of prominent advances having been reported in the past few years. While their lack of biomechanical strength and excessive degradation limit the clinical applications, therefore it is urgent to modify the DC scaffolds to improve the performance...
April 6, 2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29617055/-development-of-a-large-volume-human-derived-adipose-acellular-allogenic-flap-aafs-by-perfusion-decellularization
#7
Giorgio Giatsidis, Jacques P Guyette, Harald C Ott, Dennis P Orgill
In reconstructive surgery, transfer of patients' tissue (autologous flaps) is routinely used to repair large soft tissue defects caused by surgery, trauma, chronic diseases, or malformations; unfortunately, this strategy is not always possible and often creates a secondary defect in the donor site of the tissue. Tissue-engineered synthetic flaps are currently unable to repair clinically-relevant, large-volume defects; allogenic flaps from cadaveric donors could provide a ready-to-use biological alternative if treated with methods to avoid the immune-rejection of the donor's cells...
April 4, 2018: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/29569325/biocompatibility-and-hemocompatibility-of-efficiently-decellularized-whole-porcine-kidney-for-tissue-engineering
#8
Kamal Hany Hussein, Tarek Saleh, Ebtehal Ahmed, Ho-Hyun Kwak, Kyung-Mee Park, Se-Ran Yang, Byung-Jae Kang, Ki-Young Choi, Kyung-Sun Kang, Heung-Myong Woo
Whole kidney decellularization is a promising approach in regenerative medicine for engineering a functional organ. The reaction of the potential host depends on the biocompatibility of these decellularized constructs. Despite the proven ability of decellularized kidney scaffolds to guide cell attachment and growth, little is known about biocompatibility and hemocompatibility of these scaffolds. Our aim is to prepare decellularized kidneys of a clinically relevant size and evaluate its biocompatibility and hemocompatibility...
March 22, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29499099/decellularized-pancreas-as-a-native-extracellular-matrix-scaffold-for-pancreatic-islet-seeding-and-culture
#9
Rajesh Guruswamy Damodaran, Patrick Vermette
Diabetes mellitus involves the loss of function and/or absolute numbers of insulin-producing β cells in pancreatic islets. Islet transplantation is currently being investigated as a potential cure, and advances in tissue engineering methods can be used to improve pancreatic islets survival and functionality. Transplanted islets experience anoikis, hypoxia, and inflammation-mediated immune response, leading to early damage and subsequent failure of the graft. Recent development in tissue engineering enables the use of decellularized organs as scaffolds for cell therapies...
May 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29465410/mechanistics-of-biomass-discharge-during-whole-heart-decellularization
#10
Jörn Hülsmann, Hug Aubin, Fabian Oberle, Nicolas Schütterle, Shahbaz T Bandesha, Makoto Iijima, Artur Lichtenberg, Payam Akhyari
Whole-organ engineering-based on the functional repopulation of acellular whole-organ scaffolds derived from perfusion-based in toto decellularization of the specific organ system-is one of the most promising fields in tissue engineering. However, to date, we still have hardly any insights into the process of perfusion-based scaffold generation itself, with human-scale scaffolds usually obtained by adoption of small animal decellularization models, although those organs are of decreased biomass and potentially different biological characteristics...
March 21, 2018: Biomedical Materials
https://www.readbyqxmd.com/read/29452238/human-adipose-tissue-derived-stromal-cells-in-combination-with-exogenous-stimuli-facilitate-three-dimensional-network-formation-of-human-endothelial-cells-derived-from-various-sources
#11
Dominique Manikowski, Birgit Andrée, Esther Samper, Clémence Saint-Marc, Ruth Olmer, Peter Vogt, Sarah Strauß, Axel Haverich, Andres Hilfiker
In natural tissues, the nutrition of cells and removal of waste products is facilitated by a dense capillary network which is generated during development. This perfusion system is also indispensable for tissue formation in vitro. Nutrition depending solely on diffusion is not sufficient to generate tissues of clinically relevant dimensions, which is a core aim in tissue engineering research. In this study, the establishment of a vascular network was investigated in a self-assembling approach employing endothelial and mural cells...
February 13, 2018: Vascular Pharmacology
https://www.readbyqxmd.com/read/29443081/recombinant-collagen-i-peptide-microcarriers-for-cell-expansion-and-their-potential-use-as-cell-delivery-system-in-a-bioreactor-model
#12
Melva Suarez Muñoz, Davide Confalonieri, Heike Walles, Elisabeth M W M van Dongen, Gudrun Dandekar
Tissue engineering is a promising field, focused on developing solutions for the increasing demand on tissues and organs regarding transplantation purposes. The process to generate such tissues is complex, and includes an appropriate combination of specific cell types, scaffolds, and physical or biochemical stimuli to guide cell growth and differentiation. Microcarriers represent an appealing tool to expand cells in a three-dimensional (3D) microenvironment, since they provide higher surface-to volume ratios and mimic more closely the in vivo situation compared to traditional two-dimensional methods...
February 7, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29407754/assessment-of-static-and-perfusion-methods-for-decellularization-of-pcl-membrane-supported-periodontal-ligament-cell-sheet-constructs
#13
Amro Farag, Saeed M Hashimi, Cedryck Vaquette, Fabio Z Volpato, Dietmar W Hutmacher, Saso Ivanovski
OBJECTIVES: Decellularization aims to harness the regenerative properties of native extracellular matrix. The objective of this study was to evaluate different methods of decellularization of periodontal ligament cell sheets whilst maintaining their structural and biological integrity. DESIGN: Human periodontal ligament cell sheets were placed onto melt electrospun polycaprolactone (PCL) membranes that reinforced the cell sheets during the various decellularization protocols...
April 2018: Archives of Oral Biology
https://www.readbyqxmd.com/read/29391037/effect-of-pulsatile-flow-perfusion-on-decellularization
#14
Sung Min Park, Seran Yang, Se-Min Rye, Seong Wook Choi
BACKGROUND: Decellularized animal organs have been used as scaffolds for tissue engineering. To make a properly functioning scaffolds, the extracellular matrix (ECM) components must be preserved after decellularization. Because pulsatile flow is known to be beneficial for tissue perfusion, pulsatile perfusion of a detergent might decrease the exposure time of the tissues to the detergent used for decellularization. Using Energy Equivalent Pressure (EEP) as a pulsatility parameter, the effect of pulsatile flow in decellularization process is studied...
February 1, 2018: Biomedical Engineering Online
https://www.readbyqxmd.com/read/29377912/recellularization-of-rat-liver-an-in-vitro-model-for-assessing-human-drug-metabolism-and-liver-biology
#15
Matthew J Robertson, Benjamin Soibam, Jacqueline G O'Leary, Luiz C Sampaio, Doris A Taylor
Liver-like organoids that recapitulate the complex functions of the whole liver by combining cells, scaffolds, and mechanical or chemical cues are becoming important models for studying liver biology and drug metabolism. The advantages of growing cells in three-dimensional constructs include enhanced cell-cell and cell-extracellular matrix interactions and preserved cellular phenotype including, prevention of de-differentiation. In the current study, biomimetic liver constructs were made via perfusion decellularization of rat liver, with the goal of maintaining the native composition and structure of the extracellular matrix...
2018: PloS One
https://www.readbyqxmd.com/read/29368270/vascularization-of-pancreatic-decellularized-scaffold-with-endothelial-progenitor-cells
#16
Yibing Guo, Cen Wu, Liancheng Xu, Yang Xu, Li Xiaohong, Zhu Hui, Lu Jingjing, Yuhua Lu, Zhiwei Wang
Vascularization remains a large obstacle for creating a functional pancreas-tissue equivalent for transplantation. In this study, a pre-vascularized pancreatic decellularized scaffold was prepared through endothelializing with endothelial progenitor cells (EPCs) in a bioreactor, and the ability to regenerate new blood vessels was detected in vivo. Initially, pancreases of Sprague-Dawley (SD) rats were perfused with 1% Triton X-100 and 0.1% ammonium hydroxide to remove the cellular components while the intact vascular network was preserved...
January 24, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29364256/a-protocol-for-decellularizing-mouse-cochleae-for-inner-ear-tissue-engineering
#17
Christopher A Neal, Jennifer G Nelson-Brantley, Michael S Detamore, Hinrich Staecker, Adam J Mellott
In mammals, mechanosensory hair cells that facilitate hearing lack the ability to regenerate, which has limited treatments for hearing loss. Current regenerative medicine strategies have focused on transplanting stem cells or genetic manipulation of surrounding support cells in the inner ear to encourage replacement of damaged stem cells to correct hearing loss. Yet, the extracellular matrix (ECM) may play a vital role in inducing and maintaining function of hair cells, and has not been well investigated. Using the cochlear ECM as a scaffold to grow adult stem cells may provide unique insights into how the composition and architecture of the extracellular environment aids cells in sustaining hearing function...
January 1, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29352303/perfusion-decellularization-of-a-human-limb-a-novel-platform-for-composite-tissue-engineering-and-reconstructive-surgery
#18
Mattia Francesco Maria Gerli, Jacques Paul Guyette, Daniele Evangelista-Leite, Brian Burns Ghoshhajra, Harald Christian Ott
Muscle and fasciocutaneous flaps taken from autologous donor sites are currently the most utilized approach for trauma repair, accounting annually for 4.5 million procedures in the US alone. However, the donor tissue size is limited and the complications related to these surgical techniques lead to morbidities, often involving the donor sites. Alternatively, recent reports indicated that extracellular matrix (ECM) scaffolds boost the regenerative potential of the injured site, as shown in a small cohort of volumetric muscle loss patients...
2018: PloS One
https://www.readbyqxmd.com/read/29338127/establishment-of-practical-recellularized-liver-graft-for-blood-perfusion-using-primary-rat-hepatocytes-and-liver-sinusoidal-endothelial-cells
#19
H Kojima, K Yasuchika, K Fukumitsu, T Ishii, S Ogiso, Y Miyauchi, R Yamaoka, T Kawai, H Katayama, E Y Yoshitoshi-Uebayashi, S Kita, K Yasuda, N Sasaki, J Komori, S Uemoto
Tissue decellularization produces a three-dimensional scaffold that can be used to fabricate functional liver grafts following recellularization. Inappropriate cell distribution and clotting during blood perfusion hinder the practical use of recellularized livers. Here we aimed to establish a seeding method for the optimal distribution of parenchymal and endothelial cells, and to evaluate the effect of liver sinusoidal endothelial cells (LSECs) in the decellularized liver. Primary rat hepatocytes and LSECs were seeded into decellularized whole-liver scaffolds via the biliary duct and portal vein, respectively...
January 16, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29286394/processing-of-human-cardiac-tissue-toward-extracellular-matrix-self-assembling-hydrogel-for-in-vitro-and-in-vivo-applications
#20
Matthias Becker, Janita A Maring, Barbara Oberwallner, Benjamin Kappler, Oliver Klein, Volkmar Falk, Christof Stamm
Acellular extracellular matrix preparations are useful for studying cell-matrix interactions and facilitate regenerative cell therapy applications. Several commercial extracellular matrix products are available as hydrogels or membranes, but these do not possess tissue-specific biological activity. Because perfusion decellularization is usually not possible with human heart tissue, we developed a 3-step immersion decellularization process. Human myocardial slices procured during surgery are first treated with detergent-free hyperosmolar lysis buffer, followed by incubation with the ionic detergent, sodium dodecyl sulfate, and the process is completed by exploiting the intrinsic DNase activity of fetal bovine serum...
December 4, 2017: Journal of Visualized Experiments: JoVE
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