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Zhang, J.; Dijke, P. ten; Wuhrer, M.; Zhang, T. (2020)

Role of glycosylation in TGF-beta signaling and epithelial-to-mesenchymal transition in cancer

Article / Letter to editor
Glycosylation is a common posttranslational modification on membrane-associated and secreted proteins that is of pivotal importance for regulating cell functions. Aberrant glycosylation can lead to uncontrolled cell proliferation, cell-matrix interactions, migration and differentiation, and has been shown to be involved in cancer and other diseases. The epithelial-to-mesenchymal transition is a key step in the metastatic process by which cancer cells gain the ability to invade tissues and extravasate into the bloodstream. This cellular transformation process, which is associated by morphological change, loss of epithelial traits and gain of mesenchymal markers, is triggered by the secreted cytokine transforming growth factor-beta (TGF-beta). TGF-beta bioactivity is carefully regulated, and its effects on cells are mediated by its receptors on the cell surface. In this review, we first provide a brief overview of major types of glycans, namely,N-glycans,O-glycans, glycosphingolipids...Show moreGlycosylation is a common posttranslational modification on membrane-associated and secreted proteins that is of pivotal importance for regulating cell functions. Aberrant glycosylation can lead to uncontrolled cell proliferation, cell-matrix interactions, migration and differentiation, and has been shown to be involved in cancer and other diseases. The epithelial-to-mesenchymal transition is a key step in the metastatic process by which cancer cells gain the ability to invade tissues and extravasate into the bloodstream. This cellular transformation process, which is associated by morphological change, loss of epithelial traits and gain of mesenchymal markers, is triggered by the secreted cytokine transforming growth factor-beta (TGF-beta). TGF-beta bioactivity is carefully regulated, and its effects on cells are mediated by its receptors on the cell surface. In this review, we first provide a brief overview of major types of glycans, namely,N-glycans,O-glycans, glycosphingolipids and glycosaminoglycans that are involved in cancer progression. Thereafter, we summarize studies on how the glycosylation of TGF-beta signaling components regulates TGF-beta secretion, bioavailability and TGF-beta receptor function. Then, we review glycosylation changes associated with TGF-beta-induced epithelial-to-mesenchymal transition in cancer. Identifying and understanding the mechanisms by which glycosylation affects TGF-beta signaling and downstream biological responses will facilitate the identification of glycans as biomarkers and enable novel therapeutic approaches.Show less
cancer
epithelial-to-mesenchymal transition
glycosphingolipids
N-glycosylation
O-glycosylation
transforming growth factor-beta
All authors
Zhang, J.; Dijke, P. ten; Wuhrer, M.; Zhang, T.
Date
2020-06-25
Journal
Protein & Cell
Volume
12
Pages
89 - 106
DOI
doi:10.1007/s13238-020-00741-7
Link
https://link.springer.com/article/10.1007/s13238-020-00741-7