Carcinoma cell hyaluronan as a "portable" cancerized prometastatic microenvironment

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Abstract

Hyaluronan (HA) is a structurally simple polysaccharide, but its ability to act as a template for organizing pericellular matrices and its regulated synthesis and degradation are key to initiating repair responses. Importantly, these HA functions are usurped by tumor cells to facilitate progression and metastasis. Recent advances have identified the functional complexities associated with the synthesis and degradation of HA-rich matrices. Three enzymes synthesize large HA polymers while multiple hyaluronidases or tissue free radicals degrade these into smaller bioactive fragments. A family of extracellular and cell-associated HA-binding proteins/receptors translates the bioinformation encrypted in this complex polymer mixture to activate signaling networks required for cell survival, proliferation, and migration in an actively remodeling microenvironment. Changes in HA metabolism within both the peritumor stroma and parenchyma are linked to tumor initiation, progression, and poor clinical outcome. We review evidence that metastatic tumor cells must acquire the capability to autonomously synthesize, assemble, and process their own "portable" HA-rich microenvironments to survive in the circulation, metastasize to ectopic sites, and escape therapeutic intervention. Strategies to disrupt the HA machinery of primary tumor and circulating tumor cells may enhance the effectiveness of current conventional and targeted therapies.

Original languageEnglish (US)
Pages (from-to)2507-2512
Number of pages6
JournalCancer Research
Volume76
Issue number9
DOIs
StatePublished - May 1 2016

Bibliographical note

Funding Information:
This work was supported by the Chairman's Fund Professor in Cancer Research (J.B. McCarthy), American Heart Association Scientist Development Grant 13SDG6450000 (D.K. Wood), Prostate Cancer Canada, LRCP catalyst and Canadian Breast Cancer Foundation (E.A. Turley).

Publisher Copyright:
© 2016 American Association for Cancer Research.

Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.

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