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You are researching: Meniscus Tissue Engineering
Cancer Cell Lines
Cell Type
Tissue and Organ Biofabrication
Skin Tissue Engineering
Drug Delivery
Biological Molecules
Solid Dosage Drugs
Stem Cells
Personalised Pharmaceuticals
Inducend Pluripotent Stem Cells (IPSCs)
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- Cell Type
- Epithelial
- Neutrophils
- Human Umbilical Vein Endothelial Cells (HUVECs)
- Organoids
- Stem Cells
- Spheroids
- Meniscus Cells
- Keratinocytes
- Skeletal Muscle-Derived Cells (SkMDCs)
- Neurons
- Macrophages
- Human Trabecular Meshwork Cells
- Endothelial
- CardioMyocites
- Melanocytes
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- Biomaterials & Bioinks
- Application
- Tissue and Organ Biofabrication
- Cartilage Tissue Engineering
- Bone Tissue Engineering
- Drug Delivery
- Skin Tissue Engineering
- Vascularization
- Nerve – Neural Tissue Engineering
- Meniscus Tissue Engineering
- Heart – Cardiac Patches Tissue Engineering
- Adipose Tissue Engineering
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- Tissue Models – Drug Discovery
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- Poly(Vinyl Formal)
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- Bioprinting Technologies
- Bioprinting Applications
AUTHOR
Title
Patient-specific meniscus prototype based on 3D bioprinting of human cell-laden scaffold
[Abstract]
Year
2019
Journal/Proceedings
Bone and Joint Research
Reftype
DOI/URL
DOI
Groups
AbstractObjectives Meniscal injuries are often associated with an active lifestyle. The damage of meniscal tissue puts young patients at higher risk of undergoing meniscal surgery and, therefore, at higher risk of osteoarthritis. In this study, we undertook proof-of-concept research to develop a cellularized human meniscus by using 3D bioprinting technology. Methods A 3D model of bioengineered medial meniscus tissue was created, based on MRI scans of a human volunteer. The Digital Imaging and Communications in Medicine (DICOM) data from these MRI scans were processed using dedicated software, in order to obtain an STL model of the structure. The chosen 3D Discovery printing tool was a microvalve-based inkjet printhead. Primary mesenchymal stem cells (MSCs) were isolated from bone marrow and embedded in a collagen-based bio-ink before printing. LIVE/DEAD assay was performed on realized cell-laden constructs carrying MSCs in order to evaluate cell distribution and viability. Results This study involved the realization of a human cell-laden collagen meniscus using 3D bioprinting. The meniscus prototype showed the biological potential of this technology to provide an anatomically shaped, patient-specific construct with viable cells on a biocompatible material. Conclusion This paper reports the preliminary findings of the production of a custom-made, cell-laden, collagen-based human meniscus. The prototype described could act as the starting point for future developments of this collagen-based, tissue-engineered structure, which could aid the optimization of implants designed to replace damaged menisci. Cite this article: G. Filardo, M. Petretta, C. Cavallo, L. Roseti, S. Durante, U. Albisinni, B. Grigolo. Patient-specific meniscus prototype based on 3D bioprinting of human cell-laden scaffold. Bone Joint Res 2019;8:101–106. DOI: 10.1302/2046-3758.82.BJR-2018-0134.R1.
AUTHOR
Title
Meniscus ECM‐functionalised hydrogels containing infrapatellar fat pad‐derived stem cells for bioprinting of regionally defined meniscal tissue
[Abstract]
Year
2018
Journal/Proceedings
Journal of Tissue Engineering and Regenerative Medicine
Reftype
DOI/URL
DOI
Groups
AbstractAbstract Injuries to the meniscus of the knee commonly lead to osteoarthritis. Current therapies for meniscus regeneration, including meniscectomies and scaffold implantation, fail to achieve complete functional regeneration of the tissue. This has led to increased interest in cell and gene therapies and tissue engineering approaches to meniscus regeneration. The implantation of a biomimetic implant, incorporating cells, growth factors, and extracellular matrix (ECM)‐derived proteins, represents a promising approach to functional meniscus regeneration. The objective of this study was to develop a range of ECM‐functionalised bioinks suitable for 3D bioprinting of meniscal tissue. To this end, alginate hydrogels were functionalised with ECM derived from the inner and outer regions of the meniscus and loaded with infrapatellar fat pad‐derived stem cells. In the absence of exogenously supplied growth factors, inner meniscus ECM promoted chondrogenesis of fat pad‐derived stem cells, whereas outer meniscus ECM promoted a more elongated cell morphology and the development of a more fibroblastic phenotype. With exogenous growth factors supplementation, a more fibrogenic phenotype was observed in outer ECM‐functionalised hydrogels supplemented with connective tissue growth factor, whereas inner ECM‐functionalised hydrogels supplemented with TGFβ3 supported the highest levels of Sox‐9 and type II collagen gene expression and sulfated glycosaminoglycans (sGAG) deposition. The final phase of the study demonstrated the printability of these ECM‐functionalised hydrogels, demonstrating that their codeposition with polycaprolactone microfibres dramatically improved the mechanical properties of the 3D bioprinted constructs with no noticeable loss in cell viability. These bioprinted constructs represent an exciting new approach to tissue engineering of functional meniscal grafts.