scholarly journals The Influence of Construct Scale on the Composition and Functional Properties of Cartilaginous Tissues Engineered Using Bone Marrow-Derived Mesenchymal Stem Cells

2012 ◽  
Vol 18 (3-4) ◽  
pp. 382-396 ◽  
Author(s):  
Conor T. Buckley ◽  
Eric G. Meyer ◽  
Daniel J. Kelly
Author(s):  
Eric G. Meyer ◽  
Conor T. Buckley ◽  
Daniel J. Kelly

Articular cartilage has a poor capacity for repair. Of the many procedures available to the orthopaedic surgeon, osteochondral grafting is the only technique which reliably produces hyaline cartilage within a defect.1 Bone marrow derived mesenchymal stem cells (MSCs) are an interesting alternative to harvesting cartilage grafts for chondrocytes as they also have the ability to produce cartilaginous tissues in vitro. This suggests that if tissue engineering strategies could be used to develop cartilaginous grafts with mechanical properties approaching that of normal articular cartilage, then hyaline tissue could be regenerated. Of concern with such approaches are reports that the mechanical properties of cartilaginous tissues engineered using MSCs are inferior to that engineered using chondrocytes derived from articular cartilage, although recent studies have demonstrated that adult equine MSCs produce a cartilaginous tissue mechanically superior to that derived using animal-matched adult chondrocytes.2


2014 ◽  
Vol 95 (5) ◽  
pp. 669-674
Author(s):  
B A Agaev ◽  
R M Agaev ◽  
A G Popandopulo ◽  
R E Dzhafarli

Aim. To study of the functional properties of autologous mesenchymal multipotent stem cells in patients with cirrhosis of different etiologies. Methods. Studied were the functional and phenotypic properties of autologous mesenchymal stem cells derived from the bone marrow in 35 patients (26 men and 9 women) with cirrhosis of the liver at the age of 19-53 years. Among the patients studied viral etiology was diagnosed in 18 (51.4%), alcohol - in 13 (37.1%), autoimmune - in 4 (11.4%) patients with liver cirrhosis. Results. Autologous mesenchymal stem cells from all of the observed patients were able to divide. The highest yield and the doubling rate of cell populations were observed in patients with viral cirrhosis. Comparative morphometric study of primary cultures derived stem cells in patients with autoimmune and alcoholic hepatitis, showed the presence of relatively small cells (less than 20 microns), which make up about 30% of the total number of cells. At the same time, in bone marrow derived cell cultures of patients with viral etiology of the disease the number of small cells was 1.5 times greater which makes approximately 49% of the total cell population. The vast majority of cultured stem cells, regardless of the etiology of cirrhosis express specific for these cells «stromal» markers - CD73, CD90 and CD105. Autologous mesenchymal stem cells isolated from bone marrow of patients with alcoholic liver cirrhosis characterized by the most pronounced pro-inflammatory, immunoregulatory potential. Conclusion. Functional and phenotypic properties of autologous mesenchymal stem cells in various forms of cirrhosis are different which requires adequate cultivation and correction before their transplantation.


2010 ◽  
Vol 43 (5) ◽  
pp. 920-926 ◽  
Author(s):  
Conor Timothy Buckley ◽  
Tatiana Vinardell ◽  
Stephen Desmond Thorpe ◽  
Matthew George Haugh ◽  
Elena Jones ◽  
...  

2013 ◽  
Author(s):  
Melo Ocarino Natalia de ◽  
Silvia Silva Santos ◽  
Lorena Rocha ◽  
Juneo Freitas ◽  
Reis Amanda Maria Sena ◽  
...  

2014 ◽  
Author(s):  
Reis Amanda Maria Sena ◽  
Freitas Silva Juneo de ◽  
Silvia Silva Santos ◽  
Rogeria Serakides ◽  
Melo Ocarino Natalia de

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