Supplementation of specific carbohydrates results in enhanced deposition of chondrogenic-specific matrix during mesenchymal stem cell differentiation

Journal of Tissue Engineering and Regenerative Medicine
Trudy Christiansen-WeberRussell Kern

Abstract

Repair or regeneration of hyaline cartilage in knees, shoulders, intervertebral discs, and other assorted joints is a major therapeutic target. To date, therapeutic strategies utilizing chondrocytes or mesenchymal stem cells are limited by expandability or the generation of mechanically inferior cartilage. Our objective is to generate robust cartilage-specific matrix from human mesenchymal stem cells suitable for further therapeutic development. Human mesenchymal stem cells, in an alginate 3D format, were supplied with individual sugars and chains which comprise the glycan component of proteoglycans in articular cartilage (galactose, hyaluronic acid, glucuronic acid, and xylose) during chondrogenesis. After an initial evaluation for proteoglycan deposition utilizing Alcian blue, the tissue was further evaluated for viability, structural elements, and hypertrophic status. With the further addition of serum, a substantial increase was observed in viability, the amount of proteoglycan deposition, glycosaminoglycan production, and an enhancement of Hyaluronic Acid, Collagen II and Aggrecan deposition. Suppression of hypertrophic markers (COL1A1, COL10A1, MMP13, and RUNX2) was also observed. When mesenchymal stem cells were supplied...Continue Reading

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Citations

Jan 15, 2019·Glycoconjugate Journal·João C SilvaRobert J Linhardt

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