scholarly journals Characterization and Application of Carboxymethyl Chitosan-Based Bioink in Cartilage Tissue Engineering

2020 ◽  
Vol 2020 ◽  
pp. 1-11 ◽  
Author(s):  
Yunfan He ◽  
Soroosh Derakhshanfar ◽  
Wen Zhong ◽  
Bingyun Li ◽  
Feng Lu ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Mechanical Performance ◽  
Ethylenediaminetetraacetic Acid ◽  
Cell Attachment ◽  
Cartilage Tissue Engineering ◽  
Mechanical Analysis ◽  
Cartilage Tissue ◽  
3D Bioprinting ◽  
Modified Chitosan

Chitosan is a promising natural biomaterial for biological application; however, the weak mechanical performance of pristine chitosan limits its further utilization in hard tissue (such as cartilage) engineering. In this study, a chitosan-based 3D printing bioink with suitable mechanical properties was developed as 3D bioprinting ink for chondrocyte support. Chitosan was first modified by ethylenediaminetetraacetic acid (EDTA) to provide more carboxyl groups followed by physical crosslinking with calcium to increase the hydrogel strength. Dynamic mechanical analysis was carried out to evaluate viscoelastic properties with the addition of modified chitosan. A bioink with a combination of modified and pristine chitosan was formulated for scaffold fabrication via 3D bioprinting technique. Furthermore, cell viability, cell proliferation, and expression of chondrogenic markers were evaluated in vitro in chondrocytes loaded on the bioink. The novel bioink exhibited a favorable mechanical property and promoted cell attachment and chondrogenic gene expression in chondrocytes. Based on these results, we can conclude that the presented bioink could qualify for use in 3D bioprinting in cartilage tissue engineering.

scholarly journals Potential of 3-D tissue constructs engineered from bovine chondrocytes/silk fibroin-chitosan for in vitro cartilage tissue engineering

Biomaterials ◽  
2011 ◽  
Vol 32 (25) ◽  
pp. 5773-5781 ◽  
Author(s):  
Nandana Bhardwaj ◽  
Quynhhoa T. Nguyen ◽  
Albert C. Chen ◽  
David L. Kaplan ◽  
Robert L. Sah ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Silk Fibroin ◽  
Cartilage Tissue Engineering ◽  
Cartilage Tissue ◽  
Tissue Constructs

scholarly journals Calcium/Cobalt Alginate Beads as Functional Scaffolds for Cartilage Tissue Engineering

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Stefano Focaroli ◽  
Gabriella Teti ◽  
Viviana Salvatore ◽  
Isabella Orienti ◽  
Mirella Falconi
Keyword(s):  
Tissue Engineering ◽  
Bone Morphogenetic Proteins ◽  
Transforming Growth Factor ◽  
Cartilage Tissue Engineering ◽  
Biomechanical Properties ◽  
Alginate Beads ◽  
Cartilage Tissue ◽  
Self Healing ◽  
Tissue Replacement

Articular cartilage is a highly organized tissue with complex biomechanical properties. However, injuries to the cartilage usually lead to numerous health concerns and often culminate in disabling symptoms, due to the poor intrinsic capacity of this tissue for self-healing. Although various approaches are proposed for the regeneration of cartilage, its repair still represents an enormous challenge for orthopedic surgeons. The field of tissue engineering currently offers some of the most promising strategies for cartilage restoration, in which assorted biomaterials and cell-based therapies are combined to develop new therapeutic regimens for tissue replacement. The current study describes thein vitrobehavior of human adipose-derived mesenchymal stem cells (hADSCs) encapsulated within calcium/cobalt (Ca/Co) alginate beads. These novel chondrogenesis-promoting scaffolds take advantage of the synergy between the alginate matrix and Co+2ions, without employing costly growth factors (e.g., transforming growth factor betas (TGF-βs) or bone morphogenetic proteins (BMPs)) to direct hADSC differentiation into cartilage-producing chondrocytes.

TRENDS AND CHALLENGES OF CARTILAGE TISSUE ENGINEERING

2009 ◽  
Vol 21 (03) ◽  
pp. 149-155 ◽  
Author(s):  
Hsu-Wei Fang
Keyword(s):  
Tissue Engineering ◽  
Stem Cells ◽  
Growth Factors ◽  
Bone Cells ◽  
Cartilage Tissue Engineering ◽  
Bioactive Molecules ◽  
In Vivo Studies ◽  
Cartilage Tissue

Cartilage injuries may be caused by trauma, biomechanical imbalance, or degenerative changes of joint. Unfortunately, cartilage has limited capability to spontaneous repair once damaged and may lead to progressive damage and degeneration. Cartilage tissue-engineering techniques have emerged as the potential clinical strategies. An ideal tissue-engineering approach to cartilage repair should offer good integration into both the host cartilage and the subchondral bone. Cells, scaffolds, and growth factors make up the tissue engineering triad. One of the major challenges for cartilage tissue engineering is cell source and cell numbers. Due to the limitations of proliferation for mature chondrocytes, current studies have alternated to use stem cells as a potential source. In the recent years, a lot of novel biomaterials has been continuously developed and investigated in various in vitro and in vivo studies for cartilage tissue engineering. Moreover, stimulatory factors such as bioactive molecules have been explored to induce or enhance cartilage formation. Growth factors and other additives could be added into culture media in vitro, transferred into cells, or incorporated into scaffolds for in vivo delivery to promote cellular differentiation and tissue regeneration.Based on the current development of cartilage tissue engineering, there exist challenges to overcome. How to manipulate the interactions between cells, scaffold, and signals to achieve the moderation of implanted composite differentiate into moderate stem cells to differentiate into hyaline cartilage to perform the optimum physiological and biomechanical functions without negative side effects remains the target to pursue.

scholarly journals In vitro characterization of a novel magnetic fibrin-agarose hydrogel for cartilage tissue engineering

2020 ◽  
Vol 104 ◽  
pp. 103619 ◽  
Author(s):  
Ana Belén Bonhome-Espinosa ◽  
Fernando Campos ◽  
Daniel Durand-Herrera ◽  
José Darío Sánchez-López ◽  
Sébastien Schaub ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Cartilage Tissue Engineering ◽  
Cartilage Tissue ◽  
In Vitro Characterization ◽  
Agarose Hydrogel

scholarly journals 23.4 The combination of dynamic compression and shear with rvBMP-2 for in-vitro cartilage tissue engineering

2007 ◽  
Vol 15 ◽  
pp. B81
Author(s):  
G.M. Salzmann ◽  
P. Schmitz ◽  
M. Anton ◽  
M. Stoddart ◽  
S. Grad ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Dynamic Compression ◽  
Cartilage Tissue Engineering ◽  
Cartilage Tissue

Mechano-Active Cartilage Tissue Engineering

2006 ◽  
Vol 49 ◽  
pp. 189-196
Author(s):  
Soo Hyun Kim ◽  
Young Mee Jung ◽  
Sang Heon Kim ◽  
Young Ha Kim ◽  
Jun Xie ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Dynamic Compression ◽  
Cartilage Tissue Engineering ◽  
Compressive Deformation ◽  
Cartilage Tissue ◽  
Cartilaginous Tissue ◽  
Pressing Method ◽  
Safranin O

To engineer cartilaginous constructs with a mechano-active scaffold and dynamic compression was performed for effective cartilage tissue engineering. Mechano-active scaffolds were fabricated from very elastic poly(L-lactide-co-ε-carprolactone)(5:5). The scaffolds with 85 % porosity and 300~500 μm pore size were prepared by a gel-pressing method. The scaffolds were seeded with chondrocytes and the continuous compressive deformation of 5% strain was applied to cell-polymer constructs with 0.1Hz to evaluate for the effect of dynamic compression for regeneration of cartilage. Also, the chondrocytes-seeded constructs stimulated by the continuous compressive deformation of 5% strain with 0.1Hz for 10 days and 24 days respectively were implanted in nude mice subcutaneously to investigate their biocompatibility and cartilage formation. From biochemical analyses, chondrogenic differentiation was sustained and enhanced significantly and chondrial extracellular matrix was increased through mechanical stimulation. Histological analysis showed that implants stimulated mechanically formed mature and well-developed cartilaginous tissue, as evidenced by chondrocytes within lacunae. Masson’s trichrome and Safranin O staining indicated an abundant accumulation of collagens and GAGs. Also, ECM in constructs was strongly immuno-stained with anti-rabbit collagen type II antibody. Consequently, the periodic application of dynamic compression can improve the quality of cartilaginous tissue formed in vitro and in vivo.

scholarly journals Gellan Gum Injectable Hydrogels for Cartilage Tissue Engineering Applications: In Vitro Studies and Preliminary In Vivo Evaluation

2010 ◽  
Vol 16 (1) ◽  
pp. 343-353 ◽  
Author(s):  
João T. Oliveira ◽  
Tírcia C. Santos ◽  
Luís Martins ◽  
Ricardo Picciochi ◽  
Alexandra P. Marques ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Cartilage Tissue Engineering ◽  
Gellan Gum ◽  
In Vitro Studies ◽  
Cartilage Tissue ◽  
Engineering Applications ◽  
In Vivo Evaluation ◽  
Injectable Hydrogels

In vitro and in vivo imaging techniques for cartilage tissue engineering

2006 ◽  
Vol 39 ◽  
pp. S447
Author(s):  
S. Tiwari ◽  
S. Pollok ◽  
H. Notbohm ◽  
R. Reis ◽  
B. Vollmar ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
In Vivo Imaging ◽  
Imaging Techniques ◽  
Cartilage Tissue Engineering ◽  
Cartilage Tissue
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