Decellularized bovine aorta as a promising 3D elastin scaffold for vascular tissue engineering applications

2021 ◽  
Vol 16 (12) ◽  
pp. 1037-1050
Author(s):  
Tahmineh Kazemi ◽  
Ahmad A Mohammadpour ◽  
Maryam M Matin ◽  
Nasser Mahdavi-Shahri ◽  
Hesam Dehghani ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Mtt Assay ◽  
Reverse Transcription ◽  
Dna Content ◽  
Vascular Tissue ◽  
Smooth Muscle Actin ◽  
Cardiovascular Tissue ◽  
Reverse Transcription Pcr ◽  
Cardiovascular Tissue Engineering

Aim: To evaluate the suitability of using aorta elastin scaffold, in combination with human adipose-derived mesenchymal stem cells (hAd-MSCs), as an approach for cardiovascular tissue engineering. Materials & Methods: Human adipose-derived MSCs were seeded on elastin samples of decellularized bovine aorta. The samples were cultured in vitro to investigate the inductive effects of this scaffold on the cells. The results were evaluated using histological, and immunohistochemical methods, as well as MTT assay, DNA content, reverse transcription-PCR and scanning electron microscopy. Results: Histological staining and DNA content confirmed the efficacy of decellularization procedure (82% DNA removal). MTT assay showed the construct’s ability to support cell viability and proliferation. Cell differentiation was confirmed by reverse transcription-PCR and positive immunohistochemistry for alfa smooth muscle actin and von Willebrand. Conclusion: The prepared aortic elastin samples act as a potential scaffold, in combination with MSCs, for applications in cardiovascular tissue engineering. Further experiments in animal models are required to confirm this.

scholarly journals Advancing cardiovascular tissue engineering

F1000Research ◽  
2016 ◽  
Vol 5 ◽  
pp. 1045 ◽  
Author(s):  
George A. Truskey
Keyword(s):  
Tissue Engineering ◽  
Cardiac Tissue ◽  
Great Promise ◽  
Mechanical Stimuli ◽  
Cardiovascular Tissue ◽  
Microphysiological Systems ◽  
Cardiovascular Tissue Engineering ◽  
Induced Pluripotent ◽  
Improved Methods

Cardiovascular tissue engineering offers the promise of biologically based repair of injured and damaged blood vessels, valves, and cardiac tissue. Major advances in cardiovascular tissue engineering over the past few years involve improved methods to promote the establishment and differentiation of induced pluripotent stem cells (iPSCs), scaffolds from decellularized tissue that may produce more highly differentiated tissues and advance clinical translation, improved methods to promote vascularization, and novel in vitro microphysiological systems to model normal and diseased tissue function. iPSC technology holds great promise, but robust methods are needed to further promote differentiation. Differentiation can be further enhanced with chemical, electrical, or mechanical stimuli.

Cardiovascular Tissue Engineering: A New Laminar Flow Chamber for In Vitro Improvement of Mechanical Tissue Properties

ASAIO Journal ◽  
2002 ◽  
Vol 48 (1) ◽  
pp. 8-11 ◽  
Author(s):  
Stefan Jockenhoevel ◽  
Gregor Zund ◽  
Simon P. Hoerstrup ◽  
Andrea Schnell ◽  
Marco Turina
Keyword(s):  
Tissue Engineering ◽  
Laminar Flow ◽  
Flow Chamber ◽  
Tissue Properties ◽  
Cardiovascular Tissue ◽  
Cardiovascular Tissue Engineering ◽  
Mechanical Tissue

Controlling matrix formation and cross-linking by hypoxia in cardiovascular tissue engineering

2010 ◽  
Vol 109 (5) ◽  
pp. 1483-1491 ◽  
Author(s):  
Marijke A. A. van Vlimmeren ◽  
Anita Driessen-Mol ◽  
Marloes van den Broek ◽  
Carlijn V. C. Bouten ◽  
Frank P. T. Baaijens
Keyword(s):  
Gene Expression ◽  
Tissue Engineering ◽  
Tissue Development ◽  
Low Oxygen ◽  
Cardiovascular Tissue ◽  
Expression Levels ◽  
Cardiovascular Tissue Engineering ◽  
Gene Expression Levels ◽  
Oxygen Concentrations

In vivo functionality of cardiovascular tissue engineered constructs requires in vitro control of tissue development to obtain a well developed extracellular matrix (ECM). We hypothesize that ECM formation and maturation is stimulated by culturing at low oxygen concentrations. Gene expression levels of monolayers of human vascular-derived myofibroblasts, exposed to 7, 4, 2, 1, and 0.5% O2( n = 9 per group) for 24 h, were measured for vascular endothelial growth factor (VEGF), procollagen α1(I) and α1(III), elastin, and cross-link enzymes lysyl oxidase (LOX) and lysyl hydroxylase 2 (LH2). After 4 days of exposure to 7, 2, and 0.5% O2( n = 3 per group), protein synthesis was evaluated. All analyses were compared with control cultures at 21% O2. Human myofibroblasts turned to hypoxia-driven gene expression, indicated by VEGF expression, at oxygen concentrations of 4% and lower. Gene expression levels of procollagen α1(I) and α1(III) increased to 138 ± 26 and 143 ± 19%, respectively, for all oxygen concentrations below 4%. At 2% O2, LH2 and LOX gene expression levels were higher than control cultures (340 ± 53 and 136 ± 29%, respectively), and these levels increased even further with decreasing oxygen concentrations (611 ± 176 and 228 ± 45%, respectively, at 0.5% O2). Elastin gene expression levels remained unaffected. Collagen synthesis and LH2 protein levels increased at oxygen concentrations of 2% and lower. Oxygen concentrations below 4% induce enhanced ECM production by human myofibroblasts. Implementation of these results in cardiovascular tissue engineering approaches enables in vitro control of tissue development.

scholarly journals Extracellular Matrix-Based Biomaterials for Cardiovascular Tissue Engineering

2021 ◽  
Vol 8 (11) ◽  
pp. 137
Author(s):  
Astha Khanna ◽  
Maedeh Zamani ◽  
Ngan F. Huang
Keyword(s):  
Tissue Engineering ◽  
Extracellular Matrix ◽  
Regenerative Medicine ◽  
Three Dimensional ◽  
Vascular Differentiation ◽  
Cardiovascular Tissue ◽  
Cellular Behavior ◽  
Cardiovascular Tissue Engineering ◽  
And Function

Regenerative medicine and tissue engineering strategies have made remarkable progress in remodeling, replacing, and regenerating damaged cardiovascular tissues. The design of three-dimensional (3D) scaffolds with appropriate biochemical and mechanical characteristics is critical for engineering tissue-engineered replacements. The extracellular matrix (ECM) is a dynamic scaffolding structure characterized by tissue-specific biochemical, biophysical, and mechanical properties that modulates cellular behavior and activates highly regulated signaling pathways. In light of technological advancements, biomaterial-based scaffolds have been developed that better mimic physiological ECM properties, provide signaling cues that modulate cellular behavior, and form functional tissues and organs. In this review, we summarize the in vitro, pre-clinical, and clinical research models that have been employed in the design of ECM-based biomaterials for cardiovascular regenerative medicine. We highlight the research advancements in the incorporation of ECM components into biomaterial-based scaffolds, the engineering of increasingly complex structures using biofabrication and spatial patterning techniques, the regulation of ECMs on vascular differentiation and function, and the translation of ECM-based scaffolds for vascular graft applications. Finally, we discuss the challenges, future perspectives, and directions in the design of next-generation ECM-based biomaterials for cardiovascular tissue engineering and clinical translation.

scholarly journals Hybrid elastin-like recombinamer-fibrin gels: physical characterization and in vitro evaluation for cardiovascular tissue engineering applications

2016 ◽  
Vol 4 (9) ◽  
pp. 1361-1370 ◽  
Author(s):  
Israel Gonzalez de Torre ◽  
Miriam Weber ◽  
Luis Quintanilla ◽  
Matilde Alonso ◽  
Stefan Jockenhoevel ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Physical Characterization ◽  
Crucial Importance ◽  
Engineering Applications ◽  
In Vitro Evaluation ◽  
Cardiovascular Tissue ◽  
Fibrin Gels ◽  
Cardiovascular Tissue Engineering

In the field of tissue engineering, the properties of the scaffolds are of crucial importance for the success of the application.

Cryopreserved prenatal progenitor cells as cell source for cardiovascular tissue engineering

2007 ◽  
Vol 55 (S 1) ◽  
Author(s):  
D Schmidt ◽  
C Breymann ◽  
J Achermann ◽  
B Odermatt ◽  
M Genoni ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Progenitor Cells ◽  
Cardiovascular Tissue ◽  
Cell Source ◽  
Cardiovascular Tissue Engineering

Surface Modification by Nanobiomaterials for Vascular Tissue Engineering Applications

2020 ◽  
Vol 27 (10) ◽  
pp. 1634-1646 ◽  
Author(s):  
Huey-Shan Hung ◽  
Shan-hui Hsu
Keyword(s):  
Tissue Engineering ◽  
Vascular Tissue ◽  
Thrombus Formation ◽  
Vascular Grafts ◽  
Vascular Tissue Engineering ◽  
Great Success ◽  
Natural Polymers ◽  
Vascular Biomaterials

Treatment of cardiovascular disease has achieved great success using artificial implants, particularly synthetic-polymer made grafts. However, thrombus formation and restenosis are the current clinical problems need to be conquered. New biomaterials, modifying the surface of synthetic vascular grafts, have been created to improve long-term patency for the better hemocompatibility. The vascular biomaterials can be fabricated from synthetic or natural polymers for vascular tissue engineering. Stem cells can be seeded by different techniques into tissue-engineered vascular grafts in vitro and implanted in vivo to repair the vascular tissues. To overcome the thrombogenesis and promote the endothelialization effect, vascular biomaterials employing nanotopography are more bio-mimic to the native tissue made and have been engineered by various approaches such as prepared as a simple surface coating on the vascular biomaterials. It has now become an important and interesting field to find novel approaches to better endothelization of vascular biomaterials. In this article, we focus to review the techniques with better potential improving endothelization and summarize for vascular biomaterial application. This review article will enable the development of biomaterials with a high degree of originality, innovative research on novel techniques for surface fabrication for vascular biomaterials application.

scholarly journals Effective decellularisation of human saphenous veins for biocompatible arterial tissue engineering applications: Bench optimisation and feasibility in vivo testing

2021 ◽  
Vol 12 ◽  
pp. 204173142098752
Author(s):  
Nadiah S Sulaiman ◽  
Andrew R Bond ◽  
Vito D Bruno ◽  
John Joseph ◽  
Jason L Johnson ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Mechanical Strength ◽  
Vascular Tissue ◽  
Sodium Dodecyl ◽  
Host Cells ◽  
Replacement Model ◽  
In Vivo Testing ◽  
Vascular Scaffolds

Human saphenous vein (hSV) and synthetic grafts are commonly used conduits in vascular grafting, despite high failure rates. Decellularising hSVs (D-hSVs) to produce vascular scaffolds might be an effective alternative. We assessed the effectiveness of a detergent-based method using 0% to 1% sodium dodecyl sulphate (SDS) to decellularise hSV. Decellularisation effectiveness was measured in vitro by nuclear counting, DNA content, residual cell viability, extracellular matrix integrity and mechanical strength. Cytotoxicity was assessed on human and porcine cells. The most effective SDS concentration was used to prepare D-hSV grafts that underwent preliminary in vivo testing using a porcine carotid artery replacement model. Effective decellularisation was achieved with 0.01% SDS, and D-hSVs were biocompatible after seeding. In vivo xeno-transplantation confirmed excellent mechanical strength and biocompatibility with recruitment of host cells without mechanical failure, and a 50% patency rate at 4-weeks. We have developed a simple biocompatible methodology to effectively decellularise hSVs. This could enhance vascular tissue engineering toward future clinical applications.

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