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Extracellular matrix glycation and RAGE activation. A missing piece in the puzzle of the association between diabetes and cancer.

Author
Abstract
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A growing body of epidemiologic evidence suggests that people with diabetes are at a significantly higher risk of many forms of cancer. However, the molecular mechanisms underlying this association are not fully understood. Cancer cells are surrounded by a complex milieu, also known as tumor microenvironment, which contributes to the development and metastasis of tumors. Of note, one of the major components of this niche is the extracellular matrix (ECM), which becomes highly disorganized during neoplastic progression, thereby stimulating cancer cell transformation, growth and spread.One of the consequences of chronic hyperglycemia, the most frequently observed sign of diabetes and the etiological source of diabetes complications, is the irreversible glycation and oxidation of proteins and lipids leading to the formation of the Advanced Glycation End-products (AGEs). These compounds may covalently cross-link and biochemically modify structure and functions of many proteins, and AGEs accumulation is particularly high in long-living proteins with low biological turnover, features that are shared by most, if not all, ECM proteins. AGEs-modified proteins are recognized by AGE-binding proteins, and thus glycated ECM components have the potential to trigger RAGE-dependent mechanisms. The biological consequence of RAGE activation mechanisms seems to be connected, in different ways, to drive some hallmarks of cancer onset and tumor growth. The present review intends to highlight the potential impact of ECM glycation on tumor progression by triggering RAGE-mediated mechanisms.

Year of Publication
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2018
Journal
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Carcinogenesis
Date Published
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2018
ISSN Number
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0143-3334
DOI
:
10.1093/carcin/bgy012
Short Title
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Carcinogenesis
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