NDLI: Shed proteoglycans in tumor stroma

Content Provider	Springer Nature Link
Author	Piperigkou, Zoi Mohr, Benedikt Karamas, Nikos Götte, Martin
Copyright Year	2016
Abstract	Cancer cell behavior is not only governed by tumor cell-autonomous properties but also by the surrounding tumor stroma. Cancer-associated fibroblasts, blood vessels, immune cells and the extracellular matrix of the tumor microenvironment have a profound influence on tumor progression. Proteoglycans control various normal and pathological processes, modulating cell proliferation and motility, cell-matrix interactions, immune cell recruitment and angiogenesis. They are major mediators of cancer cell behavior though a dynamic interplay with extracellular matrix components. During cancer progression, their altered expression can promote the activation of several signaling cascades regulating crucial functional properties of cancer cells. Notably, the function of cell surface proteoglycans can be altered by ectodomain shedding, which converts membrane-bound coreceptors into soluble paracrine effector molecules. In this review, we highlight the importance of proteoglycans and their soluble counterparts in cancer progression and the consequences of their interactions with the adjacent stroma. The dynamic interplay among shed proteoglycans and proteolytic enzymes has a significant impact both on tumor cells and their surrounding stroma, with important implications for the diagnosis of this disease and for novel therapeutic approaches. Graphical Abstract Syndecan shedding. The mechanism of shedding involves the proteolytic cleavage of their ectodomain near the plasma membrane by metzincin enzymes, such as metalloproteinases. N-acetylglucosamine-alpha-L-iduronic acid/beta-D-glucuronic acid (HS) chains can be additionally cleaved by heparanase. Syndecan core protein can be further processed by intramembrane enzymatic cleavage. Syndecans are in a dynamic interplay with the extracellular matrix and several receptor-tyrosine-kinases (RTKs) and various growth factors, for which they act as co-receptors, thus mediating numerous signaling pathways
Starting Page	643
Ending Page	655
Page Count	13
File Format	PDF
ISSN	0302766X
Journal	Cell and Tissue Research
Volume Number	365
Issue Number	3
e-ISSN	14320878
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-07-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Proteoglycans Syndecans Shedding Tumor microenvironment Stroma Human Genetics Proteomics Molecular Medicine
Content Type	Text
Resource Type	Article
Subject	Cell Biology Histology Pathology and Forensic Medicine

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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