scholarly journals Tissue Engineering Approaches in the Design of Healthy and Pathological In Vitro Tissue Models

2017 ◽  
Vol 5 ◽  
Author(s):  
Silvia Caddeo ◽  
Monica Boffito ◽  
Susanna Sartori
Keyword(s):  
Tissue Engineering ◽  
Tissue Models

scholarly journals On the transferability of tissue engineering technologies to the design of tissue models

2020 ◽  
Author(s):  
Gianluca Ciardelli
Keyword(s):  
Tissue Engineering ◽  
Soft Tissue ◽  
Molecular Mechanisms ◽  
Disease Onset ◽  
In Vitro Models ◽  
Ageing Process ◽  
Tissue Models ◽  
Insight Into

3D tissue-engineered models are promising tools in the screening and evaluation of drugs and therapies as well as in the investigation of the molecular mechanisms involved in disease onset and progression. In this context, we describe our efforts in soft tissue replication, to design in vitro models that have the potential to provide better insight into the development of ageing process and related pathologies, with particular reference to the cardiovascular field.

scholarly journals 3D Printing Breast Tissue Models: A Review of Past Work and Directions for Future Work

Micromachines ◽  
2019 ◽  
Vol 10 (8) ◽  
pp. 501 ◽  
Author(s):  
Chantell Cleversey ◽  
Meghan Robinson ◽  
Stephanie M. Willerth
Keyword(s):  
Tissue Engineering ◽  
Breast Tissue ◽  
In Vitro Models ◽  
Attractive Potential ◽  
Biomaterial Scaffolds ◽  
Potential Alternative ◽  
Future Work ◽  
Tissue Models

Breast cancer often results in the removal of the breast, creating a need for replacement tissue. Tissue engineering offers the promise of generating such replacements by combining cells with biomaterial scaffolds and serves as an attractive potential alternative to current surgical repair methods. Such engineered tissues can also serve as important tools for drug screening and provide in vitro models for analysis. 3D bioprinting serves as an exciting technology with significant implications and applications in the field of tissue engineering. Here we review the work that has been undertaken in hopes of generating the recognized in-demand replacement breast tissue using different types of bioprinting. We then offer suggestions for future work needed to advance this field for both in vitro and in vivo applications.

scholarly journals Engineering a Model to Study Viral Infections: Bioprinting, Microfluidics, and Organoids to Defeat Coronavirus Disease 2019 (COVID-19)

2020 ◽  
Vol 6 (4) ◽  
Author(s):  
Anastasia Shpichka ◽  
Polina Bikmulina ◽  
Maria Peshkova ◽  
Nastasia Kosheleva ◽  
Irina Zurina ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Severe Acute Respiratory Syndrome ◽  
Viral Infections ◽  
Tissue Model ◽  
Tissue Models

While the number of studies related to severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) is constantly growing, it is essential to provide a framework of modeling viral infections. Therefore, this review aims to describe the background presented by earlier used models for viral studies and an approach to design an “ideal” tissue model for SARS-CoV-2 infection. Due to the previous successful achievements in antiviral research and tissue engineering, combining the emerging techniques such as bioprinting, microfluidics, and organoid formation are considered to be one of the best approaches to form in vitro tissue models. The fabrication of an integrated multi-tissue bioprinted platform tailored for SARS-CoV-2 infection can be a great breakthrough that can help defeat coronavirus disease in 2019.

scholarly journals 3D bioprinting technology for regenerative medicine applications

2016 ◽  
Vol 2 (2) ◽  
Author(s):  
Dhakshinamoorthy Sundaramurthi ◽  
Sakandar Rauf ◽  
Charlotte Hauser
Keyword(s):  
Tissue Engineering ◽  
Regenerative Medicine ◽  
Drug Testing ◽  
Severe Disease ◽  
Three Dimensional ◽  
In Vitro Models ◽  
3D Bioprinting ◽  
Organ Printing ◽  
Tissue Models

Alternative strategies that overcome existing organ transplantation methods are of increasing importance be-cause of ongoing demands and lack of adequate organ donors. Recent improvements in tissue engineering techniques offer improved solutions to this problem and will influence engineering and medicinal applications. Tissue engineering employs the synergy of cells, growth factors and scaffolds besides others with the aim to mimic the native extracellular matrix for tissue regeneration. Three-dimensional (3D) bioprinting has been explored to create organs for transplanta-tion, medical implants, prosthetics, in vitro models and 3D tissue models for drug testing. In addition, it is emerging as a powerful technology to provide patients with severe disease conditions with personalized treatments. Challenges in tis-sue engineering include the development of 3D scaffolds that closely resemble native tissues. In this review, existing printing methods such as extrusion-based, robotic dispensing, cellular inkjet, laser-assisted printing and integrated tissue organ printing (ITOP) are examined. Also, natural and synthetic polymers and their blends as well as peptides that are exploited as bioinks are discussed with emphasis on regenerative medicine applications. Furthermore, applications of 3D bioprinting in regenerative medicine, evolving strategies and future perspectives are summarized.

scholarly journals Cell/Tissue Microenvironment Engineering and Monitoring in Tissue Engineering, Regenerative Medicine, and In Vitro Tissue Models

2014 ◽  
Vol 2014 ◽  
pp. 1-2 ◽  
Author(s):  
Nihal Engin Vrana ◽  
Vasif Hasirci ◽  
Garrett Brian McGuinness ◽  
Albana Ndreu-Halili
Keyword(s):  
Tissue Engineering ◽  
Regenerative Medicine ◽  
Tissue Microenvironment ◽  
Cell Tissue ◽  
Tissue Models

Decellularized bone extracellular matrix in skeletal tissue engineering

2020 ◽  
Vol 48 (3) ◽  
pp. 755-764
Author(s):  
Benjamin B. Rothrauff ◽  
Rocky S. Tuan
Keyword(s):  
Tissue Engineering ◽  
Bone Regeneration ◽  
Tissue Regeneration ◽  
Animal Studies ◽  
Tumor Resection ◽  
Regenerative Capacity ◽  
Skeletal Tissue ◽  
Large Bone

Bone possesses an intrinsic regenerative capacity, which can be compromised by aging, disease, trauma, and iatrogenesis (e.g. tumor resection, pharmacological). At present, autografts and allografts are the principal biological treatments available to replace large bone segments, but both entail several limitations that reduce wider use and consistent success. The use of decellularized extracellular matrices (ECM), often derived from xenogeneic sources, has been shown to favorably influence the immune response to injury and promote site-appropriate tissue regeneration. Decellularized bone ECM (dbECM), utilized in several forms — whole organ, particles, hydrogels — has shown promise in both in vitro and in vivo animal studies to promote osteogenic differentiation of stem/progenitor cells and enhance bone regeneration. However, dbECM has yet to be investigated in clinical studies, which are needed to determine the relative efficacy of this emerging biomaterial as compared with established treatments. This mini-review highlights the recent exploration of dbECM as a biomaterial for skeletal tissue engineering and considers modifications on its future use to more consistently promote bone regeneration.

Bioreaktoren für Knochen-Tissue-Engineering

2013 ◽  
Vol 22 (03) ◽  
pp. 188-195 ◽  
Author(s):  
H.-H. Hsu ◽  
C. Goepfert ◽  
R. Pörtner
Keyword(s):  
Tissue Engineering

ZusammenfassungZur medizinischen Behandlung großer Knochendefekte oder Verletzungen werden als Alternative zu etablierten Behandlungs-methoden neue Konzepte des Tissue Engineering (TE) diskutiert. Beim Knochen-TE ist es das Ziel, eine mit Zellen besiedelte drei-dimensionale (3D), biologisch abbaubare Struktur am Ort der Verletzung zu implantieren. Techniken für die organotypische Kultivierung von Knochenzellen in vitro beruhen auf der Kultivierung von Gewebezellen in Bioreaktoren in einem definierten Kultur-medium auf porösen Matrizes (Scaffolds), um ein gewebeähnliches Wachstum in 3D-Strukturen zu ermöglichen. Ein wichtiger Faktor für die erfolgreiche 3D-Kultur ist die Schaffung adäquater Strömungsbedingungen, die wiederum Einfluss auf die biochemischen und biophysikalischen (z. B. mechanische) Reize haben, denen die Zellen ausgesetzt sind. Hier müssen neben Schereffekten auch Stofftransportlimitierungen berücksichtigt werden. Der Beitrag fasst den aktuellen Stand bei der Entwicklung von Bioreaktoren für die Generierung von Knochenersatzmaterialien zusammen.

In vitro- / in vivo- Untersuchungen zur Biokompatibilität und Bioresorption amorpher Kieselgelfaser für das Tissue engineering humaner Knorpelgewebe

2004 ◽  
Vol 83 (02) ◽  
Author(s):  
A Haisch ◽  
A Evers ◽  
K Jöhrens-Leder ◽  
S Jovanovic ◽  
B Sedlmaier ◽  
...  
Keyword(s):  
Tissue Engineering

Needleless electrospinning of PVP/PGS fibrous scaffolds for skin tissue engineering applications

2018 ◽  
Author(s):  
Antonios Keirouz ◽  
Giuseppino Fortunato ◽  
Anthony Callanan ◽  
Norbert Radacsi
Keyword(s):  
Tissue Engineering ◽  
Tensile Modulus ◽  
Dermal Fibroblasts ◽  
Skin Tissue ◽  
Skin Substitute ◽  
Electrospinning Technique ◽  
Skin Tissue Engineering ◽  
Needleless Electrospinning ◽  
High Concentrations

Scaffolds and implants used for tissue engineering need to be adapted for their mechanical properties with respect to their environment within the human body. Therefore, a novel composite for skin tissue engineering is presented by use of blends of Poly(vinylpyrrolidone) (PVP) and Poly(glycerol sebacate) (PGS) were fabricated via the needleless electrospinning technique. The formed PGS/PVP blends were morphologically, thermochemically and mechanically characterized. The morphology of the developed fibers related to the concentration of PGS, with high concentrations of PGS merging the fibers together plasticizing the scaffold. The tensile modulus appeared to be affected by the concentration of PGS within the blends, with an apparent decrease in the elastic modulus of the electrospun mats and an exponential increase of the elongation at break. Ultraviolet (UV) crosslinking of PGS/PVP significantly decreased and stabilized the wettability of the formed fiber mats, as indicated by contact angle measurements. In vitro examination showed good viability and proliferation of human dermal fibroblasts over the period of a week. The present findings provide important insights for tuning the elastic properties of electrospun material by incorporating this unique elastomer, as a promising future candidate for skin substitute constructs.

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