Articular cartilage: from formation to tissue engineering

2016 ◽  
Vol 4 (5) ◽  
pp. 734-767 ◽  
Author(s):  
Sandra Camarero-Espinosa ◽  
Barbara Rothen-Rutishauser ◽  
E. Johan Foster ◽  
Christoph Weder

A summary of the current state of cartilage tissue engineering underlying the relevant biological aspects that are important for scaffold design.

Materials ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3331 ◽  
Author(s):  
Chaudhry R. Hassan ◽  
Yi-Xian Qin ◽  
David E. Komatsu ◽  
Sardar M.Z. Uddin

Scaffold design plays an essential role in tissue engineering of articular cartilage by providing the appropriate mechanical and biological environment for chondrocytes to proliferate and function. Optimization of scaffold design to generate tissue-engineered cartilage has traditionally been conducted using in-vitro and in-vivo models. Recent advances in computational analysis allow us to significantly decrease the time and cost of scaffold optimization using finite element analysis (FEA). FEA is an in-silico analysis technique that allows for scaffold design optimization by predicting mechanical responses of cells and scaffolds under applied loads. Finite element analyses can potentially mimic the morphology of cartilage using mesh elements (tetrahedral, hexahedral), material properties (elastic, hyperelastic, poroelastic, composite), physiological loads by applying loading conditions (static, dynamic), and constitutive stress–strain equations (linear, porous–elastic, biphasic). Furthermore, FEA can be applied to the study of the effects of dynamic loading, material properties cell differentiation, cell activity, scaffold structure optimization, and interstitial fluid flow, in isolated or combined multi-scale models. This review covers recent studies and trends in the use of FEA for cartilage tissue engineering and scaffold design.


2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Er-Yuan Chuang ◽  
Chih-Wei Chiang ◽  
Pei-Chun Wong ◽  
Chih-Hwa Chen

The treatment of articular cartilage damage is a major task in the medical science of orthopedics. Hydrogels possess the ability to form multifunctional cartilage grafts since they possess polymeric swellability upon immersion in an aqueous phase. Polymeric hydrogels are capable of physiological swelling and greasing, and they possess the mechanical behavior required for use as articular cartilage substitutes. The chondrogenic phenotype of these materials may be enhanced by embedding living cells. Artificial hydrogels fabricated from biologically derived and synthesized polymeric materials are also used as tissue-engineering scaffolds; with their controlled degradation profiles, the release of stimulatory growth factors can be achieved. In order to make use of these hydrogels, cartilage implants were formulated in the laboratory to demonstrate the bionic mechanical behaviors of physiological cartilage. This paper discusses developments concerning the use of polymeric hydrogels for substituting injured cartilage tissue and assisting tissue growth. These gels are designed with consideration of their polymeric classification, mechanical strength, manner of biodegradation, limitations of the payload, cellular interaction, amount of cells in the 3D hydrogel, sustained release for the model drug, and the different approaches for incorporation into adjacent organs. This article also summarizes the different advantages, disadvantages, and the future prospects of hydrogels.


2011 ◽  
Vol 7 (12) ◽  
pp. 4187-4194 ◽  
Author(s):  
Wei-Bor Tsai ◽  
Wen-Tung Chen ◽  
Hsiu-Wen Chien ◽  
Wei-Hsuan Kuo ◽  
Meng-Jiy Wang

F1000Research ◽  
2017 ◽  
Vol 6 ◽  
pp. 2158 ◽  
Author(s):  
Ivana Gadjanski

Articular cartilage (AC) is a seemingly simple tissue that has only one type of constituting cell and no blood vessels and nerves. In the early days of tissue engineering, cartilage appeared to be an easy and promising target for reconstruction and this was especially motivating because of widespread AC pathologies such as osteoarthritis and frequent sports-induced injuries. However, AC has proven to be anything but simple. Recreating the varying properties of its zonal structure is a challenge that has not yet been fully answered. This caused the shift in tissue engineering strategies toward bioinspired or biomimetic approaches that attempt to mimic and simulate as much as possible the structure and function of the native tissues. Hydrogels, particularly gradient hydrogels, have shown great potential as components of the biomimetic engineering of the cartilaginous tissue.


2019 ◽  
Vol 20 (2) ◽  
pp. 1900278 ◽  
Author(s):  
Zhongyi Zhao ◽  
Changjiang Fan ◽  
Feng Chen ◽  
Yutai Sun ◽  
Yujun Xia ◽  
...  

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