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Functional role of periostin in development and wound repair: implications for connective tissue disease

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Journal of Cell Communication and Signaling Aims and scope

Abstract

Integrity of the extracellular matrix (ECM) is essential for maintaining the normal structure and function of connective tissues. ECM is secreted locally by cells and organized into a complex meshwork providing physical support to cells, tissues, and organs. Initially thought to act only as a scaffold, the ECM is now known to provide a myriad of signals to cells regulating all aspects of their phenotype from morphology to differentiation. Matricellular proteins are a class of ECM related molecules defined through their ability to modulate cell–matrix interactions. Matricellular proteins are expressed at high levels during development, but typically only appear in postnatal tissue in wound repair or disease, where their levels increase substantially. Members of the CCN family, tenascin-C, osteopontin, secreted protein acidic rich in cysteine (SPARC), bone sialoprotein, thrombospondins, and galectins have all been classed as matricellular proteins. Periostin, a 90 kDa secreted homophilic cell adhesion protein, was recently added to matricellular class of proteins based on its expression pattern and function during development as well as in wound repair. Periostin is expressed in connective tissues including the periodontal ligament, tendons, skin and bone, and is also prominent in neoplastic tissues, cardiovascular disease, as well as in connective tissue wound repair. This review will focus on the functional role of periostin in tissue physiology. Fundamentally, it appears that periostin influences cell behaviour as well as collagen fibrillogenesis, and therefore exerts control over the structural and functional properties of connective tissues in both health and disease. Periostin is a novel matricellular protein with close homology to Drosophila fasciclin 1. In this review, the functional role of periostin is discussed in the context of connective tissue physiology, in development, disease, and wound repair.

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Abbreviations

ECM:

Extracellular matrix

CCN2:

connective tissue growth factor

FA:

focal adhesion

HGF:

human gingival fibroblast

OSF-2:

osteoblast specific factor-2

RCO:

rat calvarial osteoblast

SPARC:

secreted protein acidic rich in cysteine

TSP:

thrombospondin

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Acknowledgements

Dr Hamilton would like to thank Dr Simon Conway for graciously providing periostin knockout mice. He would also like to thanks Dr David Holdsworth for performing the microCT analysis, and Pastor Salano for his help in analyzing the data.

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Correspondence to Douglas W. Hamilton.

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This review also appears on line under CCNExpress section of the Newsletters page on ICCNS Website at http://ccnsociety.com.

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Hamilton, D.W. Functional role of periostin in development and wound repair: implications for connective tissue disease. J. Cell Commun. Signal. 2, 9–17 (2008). https://doi.org/10.1007/s12079-008-0023-5

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  • DOI: https://doi.org/10.1007/s12079-008-0023-5

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