4.3 Review

The CCN axis in cancer development and progression

Journal

JOURNAL OF CELL COMMUNICATION AND SIGNALING
Volume 15, Issue 4, Pages 491-517

Publisher

SPRINGER
DOI: 10.1007/s12079-021-00618-2

Keywords

Cancers; Matricellular; Cellular communication network; CCN axis

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Significant progress has been made in understanding the role of CCN family proteins in various cancers, but new questions and intriguing results have also been generated, prompting further investigation.
Since the authors first reviewed this subject in 2016 significant progress has been documented in the CCN field with advances made in the understanding of how members of the CCN family of proteins, CCN1-6, contribute to the pathogenesis and progression, positive and negative, of a larger variety of cancers. As termed matricellular proteins, and more recently the connective communication network, it has become clearer that members of the CCN family interact complexly with other proteins in the extracellular microenvironment, membrane signaling proteins, and can also operate intracellularly at the transcriptional level. In this review we expand on this earlier information providing new detailed information and insights that appropriate a much greater involvement and importance of their role in multiple aspects of cancer. Despite all the new information many more questions have been raised and intriguing results generated that warrant greater investigation. In order to permit the reader to smoothly integrate the new information we discuss all relevant CCN members in the context of cancer subtypes. We have harmonized the nomenclature with CCN numbering for easier comparisons. Finally, we summarize what new has been learned and provide a perspective on how our knowledge about CCN1-6 is being used to drive new initiatives on cancer therapeutics.

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