Journal
FEBS JOURNAL
Volume 286, Issue 10, Pages 1815-1837Publisher
WILEY
DOI: 10.1111/febs.14748
Keywords
chondroitin-6-sulfate; cancer; extracellular matrix
Categories
Funding
- Medical University of Silesia in Katowice, Poland [KNW-2-I02/D/6/K]
- National Science Centre, Poland [2015/17/N/NZ3/03644]
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The remarkable structural heterogeneity of chondroitin sulfate (CS) and dermatan sulfate (DS) generates biological information that can be unique to each of these glycosaminoglycans (GAGs), and changes in their composition are translated into alterations in the binding profiles of these molecules. CS/DS can bind to various cytokines and growth factors, cell surface receptors, adhesion molecules, enzymes and fibrillar glycoproteins of the extracellular matrix, thereby influencing both cell behavior and the biomechanical and biochemical properties of the matrix. In this review, we summarize the current knowledge concerning CS/DS metabolism in the human cancer stroma. The remodeling of the GAG profile in the tumor niche is manifested as a substantial increase in the CS content and a gradual decrease in the proportion between DS and CS. Furthermore, the composition of CS and DS is also affected, which results in a substantial increase in the 6-O-sulfated and/or unsulfated disaccharide content, which is concomitant with a decrease in the 4-O-sulfation level. Here, we discuss the possible impact of alterations in the CS/DS sulfation pattern on the binding capacity and specificity of these GAGs. Moreover, we propose potential consequences of the stromal accumulation of chondroitin-6-sulfate for the progression and metastasis of cancer.
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